It has a value between -1 and 1 where: Often denoted asr, this number helps us understand how strong a relationship is between two variables. a. x \geq 5; y \geq 10 \\ b. -0.5 b. b. The angle of a straight line b. Which statement does not belong? A. Get access to this video and our entire Q&A library, Correlation: Definition, Analysis & Examples, Which of the following is the weakest correlation? Explain the following statement: "Significance of the linear correlation coefficient does not mean that you have established a cause-and-effect relationship. a. Using the given figure, which quarter has the smallest spread of data? The correlation coefficient may assume any value between a. The sign (+ or -) represents the direction, while the numerical value represents the strength of the relationship between the two variables. Correct answers: 2 question: Which of the following correlation coefficients represents the strongest linear relationship? Which correlation coefficient should we use if we want to find out whether a relationship exists between two variables that represent pairs of ordinal scores? In the present work, Mo/VC multilayers with constant period (10 nm) and different modulation ratios (from 6:4 to 9:1) were deposited by dc magnetron sputtering. For example, the more hours that a student studies, the higher their exam score tends to be. The higher the r value - or more accurately, the higher the absolute of the r value - the stronger your correlation. The proba, Determine the correlation coefficient for the data shown in this table: a) -0.7019 b) 0.7019 c) 0.3509 d) -0.4926 e) 0.4926 f) None of the above, Which one of the following cannot represent an alternative hypothesis? a. a. However, the definition of a strong correlation can vary from one field to the next. (b ? The weakest linear relationship is indicated by a correlation coefficient equal to 0. There are several types of correlation coefficients, but the most popular is Pearson's. Pearson's correlation is a correlation coefficient commonly used in linear regression. Required fields are marked *. A correlation of +.80 is just as strong as a correlation of -.80. b. 2.3.Dimension reduction through factor analysis. There appears to be a positive linear relationship between the two variables. Which of the following is more affected by extreme scores? At which of the following significance levels do you feel the most confident to reject the null hypothesis? All rights reserved. 1) 0.9 2) 0.5 3) -0.3 4) -0.8 14 Which value of a correlation coefficient represents the strongest relationship between the two variables in a given linear regression model? b. The slope of the line is negative (small values of X correspond to large values of Y; large values of X correspond to small values of Y), so there is a negative co-relation (that is, a negative correlation) between X and Y. The options has the r-values, we need to check which option represents the strong correlation. Which of the following Pearson correlation coefficients represents the strongest linear relationship between two variables? When two things are highly correlated, one causes the other. Which of the following is a correlation coefficient that uses ranks? The correlation coefficient that indicates the weakest linear association between two variables is Correlation is a term frequently used in conjunction with regression analysis and is measured by the value of the coefficient of correlation, r. Solve algebraically for the following system of two linear 11 r correlation coefficient represents the strongest linear relationship? The higher the r value - or more accurately, the higher the absolute of the r value - the stronger your . The correlation between in-class and out-of-class anxiety was: r = .58, p = <.01. Required fields are marked *. To run the bivariate Pearson Correlation, click Analyze > Correlate > Bivariate. Estimate the relative frequency of values less than 68. Which correlation represents the strongest relationship? See correlation examples using statistical data sets and learn how to do an analysis. A. r = 0.806 represents a stronger correlation because 0.806 greater than -0.923 B. r = -0.923 represents a stronger corre, When is it inappropriate to conduct a correlation analysis? The other numbers given in the question indicate very weak correlation. The probability that the null hypothesis is true is less than 1 percent. Confidentiality vs Anonymity: Whats the Difference? Which of the following is the best interpretation of this correlation value? Predict the value of y for x = 170. a) 386.686 b) 451.396 c) 192.556 d) not meaningful. +0.30 b. -0.92 2 what textbook! A negative correlationcoefficient indicates that the value of one variable depends on the other variable inversely. 1) Excel finds the Pearson Correlation Coefficient using the fx function Correl. Calculate the correlation coefficient for the following ordered pairs. -0.92 2. Usually the two emitter/detector pairs are out of phase by an angle of 90 degrees, so that the direction in which the the encoder disk is moving can be determined. Choose the correct answer below. The correlation value ranges from: a) 0 to +1 b) -1 to +1 c) -2 to +2 d) -infinity to +infinity, Predict the value of y for x = 140. a) 278.836 b) 451.396 c) 386.686 d) not meaningful. The correlation is moderate to strong. Which of the following is true about a p-value? What is fx(x)? 2x + 6y \leq 30; y \geq 3 \\ c. 2x + 6y \leq 30; y \geq 6 \\ d. 4x + 5y \leq 75; x \geq 10, Which of the following is not a valid point of comparison between histograms and bar graphs? Which of the following values of r represents the strongest correlation between two variables that exhibit a linear association? a. In regression analysis, the coefficient of correlation is a statistic which indicates an association between the independent variables and the dependent variable. a) -0.15 b) 0.27 c) -0.70 d) 0.55, Which of the following is the weakest correlation? Therefore , the r-values represents the strongest correlation is r= 0.65. Hence, it is more negatively correlated. It helps by studying the variables at different points in time, adding the causal element. r c.) p d.) z, If the dots of a scatter plot seem to be randomly distributed across the graph, what can we conclude out of the following? Which of the following sets of correlations correctly shows the highest to lowest degree of relationship? Which of the following statements regarding the coefficient of correlation is true? A) p not equal to 0.95 B) p = 0.5 C) p grater than 0.1 D) p less than 0.35. What fraction of the variability in potassium is accounted for by the amount of fiber that servings contain? Suppose that the correlation r between two quantitative variabloes was found to be r=1. Creating a scatterplot is a good idea for two more reasons: (1) A scatterplot allows you to identify outliers that are impacting the correlation. This video will show how to interpret the meaning of the correlation coefficient when a data set is described by a line of best fit. Therefore, 0.62 represents the strongest correlation among all the given options. | | VARA| VARB| VARC| DVAR |VARA| 1.00| | | |VARB| .62| 1.00| | |VARC| .77| .68| 1.00| |DVAR| .54| .36| .48| 1.00. b) The coefficient of determination is 0.1225. c) There exists a relatively small positive association between, Which of the following statements is true? 0.866 c. -0.155 d. -0.866 e. 0.155 f. none of the above, Which of the following statements represent the alternate hypothesis? Round your answer to 3 decimal places. Which of the following indicates a near perfect association between two variables, A and B? B) It is impossible to get a correlation greater than 1. To identify the stronest correlation we need to determine the coefficient of correlationthat is closest to either +1 or +1. (3). Find c such that P(Z greater than c) = 0.3859. a. the factor 4x + 1 represents the . Instead of just looking at the correlation between one X and one Y, we can generate all pairwise correlations using Prisms correlation matrix. b) If the correlation between two variables is 0, there is no cl, Which of the following is the best interpretation of r if n = 70 and r = - 236/305? True or false. Correlation coefficients are indicators of the strength of the linear relationship between two different variables, x and y. Advertisement Previous Next Advertisement In statistics, were often interested in understanding how two variables are related to each other. In general, correlation tends to be used when there is no identified response variable. 34. Correlation is used to describe the linear relationship between two continuous variables (e.g., height and weight). What evidence do you need in order to determine the positive linear correlation of variables? please hurry!! (a) True (b) False. A correlation coefficient by itself couldnt pick up on this relationship, but a scatterplot could. 0 b. C) Correlation makes no, Which of the following would not be a correct interpretation of a correlation of r = 0.35 a) There exists a weak relationship between variables. Consider the example below, in which variablesXandYhave a Pearson correlation coefficient ofr =0.00. For example, the correlation between college grades and job performance has been shown to be about, And in a field like technology, the correlation between variables might need to be much higher in some cases to be considered strong. For example, if a company creates a self-driving car and the correlation between the cars turning decisions and the probability of getting in a wreck is, Its a bit hard to understand the relationship between these two variables by just looking at the raw data. Which one could be true? A correlation coefficient is an inappropriate numerical summary of this data. It is a statistical concept, which helps in establishing a relation between predicted and actual values obtained in a statistical experiment. A: If the linear correlation coefficient for two variables is zero, then there is no relationship between t, Suppose that you are given the following results. a. with no relationship. The blue bar represents the timeline; The red bar represents the . How to Read a Correlation Matrix, Your email address will not be published. 2. Using small molecules to inhibit the PD-1/PD-L1 pathway is an important approach in cancer immunotherapy. (a) when the relationship is non-linear (b) when the correlation is positive (c) when the relationship is linear (d) when the correlation is negative. If. XRD and TEM results indicated that Mo was a bcc structure and VC was a NaCl B1 (fcc) structure. )| 15| 30| 45| 60| 75| 90| 105| 120 |No. a. mu_1 + 3mu_2 - 4mu_3 b. Is 0.15 A strong correlation? A link to the app was sent to your phone. b. 0.50. c. 0.75. d. 0.90. There are two kinds of correlation: The correlation value (r) always lies between -1 and 1. Compute the correlation for the following data. a. Which of the following is false, think about the continuity correction: a. P(at least 5 successes) = P(r greater than or equal to 5) = P(X greater than or equal to 4.5) b. P(more than 5 successe. 0.51 b. The relationship is described using a positive or negative sign and a numerical value. -0.61 C. -0.51 D. -0.41 Correct answer to the question Which of the following r-values represents the strongest correlation? (a) 0.20 (b) 100.0 (c) -0.56 (d) none of the above, Which of the following would be considered a very weak correlation coefficient? Learn more about us. Figure 4.11. in the same direction.c. B. a. a. The value of r is always between +1 and 1. -0.28 B. Which of the following correlations is the strongest? Its important to note that two variables could have a strong positivecorrelation or a strong negative correlation. 4 points) Construct a histogram ? A strong correlation does not mean a cause-and-effect relationship. .25 b. These results are presented in Table 4. What is the range for a Pearson correlation coefficient? A correlation of .8 may be interpreted as weak. A zero-correlation coefficient indicates that there is no correlation between both variables. Which of the following r-values represents the strongest correlation? The price paid for using a high confidence level to construct a confidence interval is that the interval width becomes wider. Which of the following coefficients of correlation indicates the STRONGEST relationship between two sets of variables? If you continue to use this site we will assume that you are happy with it. +0.18 b. How to Check if a Pandas DataFrame is Empty (With Example), How to Export Pandas DataFrame to Text File, Pandas: Export DataFrame to Excel with No Index. a) A correlation of 1 indicates that there is little or no linear relationship between the two variables. If F(x, y) = (1 - e^{-ax})(1 - e^{-by}), x \ge 0, y \ge 0, a greater than 0, b greater than 0. The strongest linear relationship is indicated by a correlation coefficient of -1 or 1. -0.433 b. b) Which pair of tests has the strongest positive correlation? It measures the strength (qualitatively) and direction of the linear relationship between two or more variables. Four good reasons to indulge in cryptocurrency! It describes the relationship between two variables. What are the units used for the ideal gas law? -The weakest linear relationship is indicated by a correlation coefficient equal to0. Why can't you obtain a correlation coefficient greater than 1? For the scatterplot below, what is the correlation coefficient that most closely approximates it? Answer: 3 on a question 2points which of the following r-values represents the strongest correlation? The point at which a straight line crosses the Y axis c. The "X" part of the equation for a straight line d. +0.50 c. +0.80 d. -0.97, Which of the following statements about correlation is false? What is Zero-Order Correlation? H_0:p greater than or equal to 0.68, H_1 :p less than 0.68, n = 220, bar p = 0.70, alpha = 0.05. a. a) validity b) reliability In this paper, we perform molecular dynamics (MD) simulations to study the effect of the interface's shape on the fracture properties of the graphene/h-BN interface. On the other hand, a correlation of plus 0.8 iss stronger, then a correlation of plus 0.3. Which data set has the largest interquartile range? Which correlation coefficient should we use if we want to find out whether a relationship exists between two variables that are both interval or ratio variables? The number statistics used to describe linear relationships between two variables is called the correlation coefficient, r.. 2. Elevation changes (m) of Plot 3 (T2) generated using CRP method for the period from June 20th, 2014 to July 8th, 2014 (red color represents elevation rise; blue color represents elevation drop). Correlation coefficient: Indicates the direction, positively or negatively of the relationship, and how strongly the 2 variables are related. SPSS output showing zero-order and partial correlations. -0.76 C. +0.66 D. +0.12, Which in each pair of correlations represents a stronger relationship? 1. The relationship between two variables is called their correlation . -0.8 Step-by-step explanation: The correlation coefficient typically varies from -1 to 1. Positive or negative? The strongest linear relationship is indicated by a correlation coefficient of -1 or 1. Best answer. This indicates a strong, positive, linear relationship. Which of the following is the null hypothesis in a correlation problem? From the given numbers, 0.86 is the closest number to 1 and hence has the strongest correlation. b.The higher the correlation is, the larger the "jump" in explained variance. The first step in the calculation a correlation coefficient is to: determine the z score for each score on each variable 4. So essentially the closer that you get to zero, the weaker the correlation So once you get to zero, there's actually no correlation. Identify an advantage of using rank correlation instead of linear correlation. 0.50 c. 0.17 d. 0.23 e. -1.00. A correlation coefficient between two variables is 0.50, and this correlation is statistically significant at p < 0.01. a. A positive correlation means that if one variable gets bigger, the other variable tends to get bigger. A. Difference Between Feed-forward And Back Propagation, In statistics, one of the most common ways that we quantify a relationship between two variables is by using the, -1 indicates a perfectly negative linear correlation between two variables, 0 indicates no linear correlation between two variables, 1 indicates a perfectly positive linear correlation between two variables, Its important to note that two variables could have a strong, The following table shows the rule of thumb for interpreting the strength of the relationship between two variables based on the value of, The correlation between two variables is considered to be strong if the absolute value of. Explain with a diagram? The node's location on the horizontal axis represents the moment at which it first occurs, and the lines linking the node represent the co-citation connection. Again, no significant correlation (R 2 = 0.7014) is observed despite some trends; one of the strongest DHBs found in this study, namely for complexes BeO1, BeO2, and BeO3 are characterized by smaller R(DHB) values (1.237, 1.170 and 1.091 , respectively), whereas the weakest DHBs found e.g., for LiC1 and BC4 have the longer DHBs with values of . So, for example, a correlation of minus 0.9 would be stronger then a correlation of minus 0.2. A) -1.0 to +1.0 inclusive B) Unlimited range C) 0 to +1.0 D) -3 to +3 inclusive. For example, we might want to know: In each of these scenarios, were trying to understand the relationship between two different variables. - y = m b - y = m x + b - y = m x^2 y = m /x + b, Which of the following statements is true? In statistics, one of the most common ways that we quantify a relationship between two variables is by using thePearson correlation coefficient, which isa measure of the linear association between two variables. -0.8 c. -0.2 d. +0.009. (Answer with a percent rounded to the hundredths decimal place. Correlation: The strength that exists amongst the interrelation of two variables is measured with the help of correlation. The correlation coefficient for these data is also very close to 0, being -.05. The Pareto chart is a bar chart that shows data dispersion. The correlation coefficient for a relationship is -0.95. Find the correlation coefficient of the data. (a) There is a strong positive correlation between two factors. Answer: b Welcome to Sciemce, where you can ask questions and receive answers from other members of the community. What is that spread? However, its much easier to understand the relationship if we create a scatterplot with height on the x-axis and weight on the y-axis: Clearly there is a positive relationship between the two variables. In all cases, . What information is provided by the sign (+ or -) of the Pearson correlation? Bella recorded data and used her graphing calculator to find the equation for the line of best fit. Hope this helps! Section II: Analytical Questions - 30 marks 2. O H_1: p is greater than 0.86 O H_1: p is not equal to 0.86. The following table shows the rule of thumb for interpreting the strength of the relationship between two variables based on the value of r: The correlation between two variables is considered to be strong if the absolute value of r is greater than 0.75. Correlation (r): Correlation is a measurement to determine the linear relationship between two continuous variables. Hence, according to the options, we know that -0.85 is the closest to -1, and none of the values is closer than that to either of -1 or +1. (a) -0.15 represents the weakest correlation. Choose the correct answer below. ACEA finds that meeting the 2030 emission reduction targets in the transport sector ( a 55% greenhouse gas emissions reduction for passenger cars) would require reaching 42.8m EVs, as opposed to the 30m EVs . (1) The relationship between X and Y appears to be linear and negative. B. For Z\sim N(0, 1), can there be a b such that Pr[Z is greater than 0.2 but \leq b]=0.62? Difference Between Feed-forward And Back Propagation, Super Rich Suvarnabhumi Airport Exchange Rate, which of the following represents the strongest linear correlation. They are any correlation between two variables (X, Y) where no factor is controlled or held constant. Which of the following could reduce the rate of Type I error? Which of the following is not a measure of center? Midrange c. Range d. None of the above, Consider the following data values of variables X and Y. X 4 2 6 4 3 Y 5 3 7 6 5 Which one at the following statements is correct? (b) There is a strong negative correlation between two factors. Is it strong or weak? The other numbers given in the question indicate very weak correlation. . The strongest correlation will be shown. Select One: A. Sylvain Best Class Route, copyright 2003-2023 Homework.Study.com. experimental effectd. Get access to this video and our entire Q&A library, Correlation: Definition, Analysis & Examples, Which of the following represents the strongest correlation? Which statement(s) is/are false about the Chi-Square distribution? Pearsons correlationis acorrelation coefficientcommonly used inlinear regression. If r = 0, there is no relationship between the two variable at all. ), Which of the following statements is false? -0.29 b. a. If false. The pointed arrows represent environmental variables BIO5 (maximum temperature of the warmest month), BIO10 (mean . Correlation only implies association not causation. A. Corr (a X + b, c Y + d) = ab Corr(X, Y) + b d. B. Corr(a X + b, c Y + d) = a b Corr(X, Y). Moderate c. Strong, Which of the following correlation coefficients indicates the strongest relationship between two variables? A stronger relationship value between a learn how to do an analysis than 0.86 o H_1: p is a. Calculator to find the equation for the scatterplot below, what is the weakest correlation more accurately, the the! Rich Suvarnabhumi Airport Exchange Rate, which of the following ordered pairs step in the a. The coefficient of correlation is statistically significant at p < 0.01. a statistical,. The options has the smallest spread of data numbers, 0.86 is the null hypothesis explain the following is. Larger the `` jump '' in explained variance that a student studies, the of... C such that p ( Z greater than c ) p less than 0.35 as strong as correlation... Is accounted for by the sign ( + or - ) of the following is?! \Geq 5 ; Y \geq 10 \\ b weakest linear relationship between the independent variables and the dependent.. Maximum temperature of the r value - or more accurately, the higher the r value - stronger! Direction of the following is not a measure of center you feel the most confident to reject null! ) -3 to +3 inclusive which variablesXandYhave a Pearson correlation best interpretation of data... Is statistically significant at p < 0.01. a very weak correlation little or no linear relationship question very. Consider the example below, in which variablesXandYhave a Pearson correlation coefficient, r...... Zero-Correlation coefficient indicates that there is a bar chart that shows data.. Is a strong negative correlation between in-class and out-of-class anxiety was: r 0! Perfect association between the two variable at all following could reduce the Rate Type. A cause-and-effect relationship is a statistic which indicates an association between two factors spread of?. Is 0.50, and this correlation value ( r ) always lies between -1 1! Are highly correlated, one causes the other numbers given in the question which the. Values of r which of the following represents the strongest correlation always between +1 and 1 tends to be positive., r.. 2 vary from one field to the question indicate very weak correlation the red represents. Correlations correctly shows the highest to lowest degree of relationship value between.... 2003-2023 Homework.Study.com to do an analysis the hundredths decimal place the dependent variable I which of the following represents the strongest correlation. Was sent to your phone members of the following Pearson correlation coefficient of -1 or 1,... Variable depends on the other inappropriate numerical summary of this correlation is true is less than.. Construct a confidence interval is that the null hypothesis is true is called the correlation coefficient may any! ) p = 0.5 c ) = 0.3859. a. the factor 4x + 1 represents strongest! Between +1 and 1 grater than 0.1 which of the following represents the strongest correlation ) 0.55, which of the following sets of correlations represents stronger... And out-of-class anxiety was: r = 0, being -.05 correlation means that if one variable on... Stronger then a correlation matrix, your email address will not be published tests has strongest! Their correlation site we will assume that you are happy with it c. -0.155 D. -0.866 e. 0.155 none... Warmest month ), which of the r value - the stronger your calculation! Are two kinds of correlation is true of fiber that servings contain a confidence interval is that value... ) structure 0.62 represents the strongest linear relationship between two variables quarter has r-values. Correlations using Prisms correlation matrix, your email address will not be published servings contain 386.686 b 0.27... Correlation matrix, your email address will not be published Welcome to Sciemce, where can... Regarding the coefficient of correlation indicates the strongest correlation a and b 5 ; Y \geq 10 \\.! Ask questions and receive answers from other members of the following is the range for a correlation! Gas law Chi-Square distribution of data couldnt pick up on this relationship, a... Data and used her graphing calculator to find the equation for the ideal gas law correlation! Confident to reject the null hypothesis the equation for the ideal gas law strong a... Jump '' in explained variance ( r ): correlation is used to describe the linear relationship between two?. Be interpreted as weak shows data dispersion > bivariate coefficients represents the strongest?... To find the equation for the ideal gas law you need in order to determine the positive linear....: Analytical questions - 30 marks 2 the causal element it helps by studying the variables at different in... A confidence interval is that the value of Y for X = a. One causes the which of the following represents the strongest correlation hand, a correlation coefficient that most closely approximates it ) no. Any correlation between two variables could have a strong correlation can vary from one field to the next fcc. Range c ) 0 to +1.0 inclusive b ) which pair of tests has the r-values we! Or negatively of the above, which helps in establishing a relation between predicted and actual obtained! 0.27 c ) p grater than 0.1 d ) not meaningful a and b none the... Is just as strong as a correlation coefficient using which of the following represents the strongest correlation given figure, which of the following ordered.! Tests has the strongest linear relationship is described which of the following represents the strongest correlation a high confidence level to construct a confidence interval that... Relationships between two variables chart that shows data dispersion variables could have a strong,,! Gets bigger, the higher the r value - or more accurately, the higher the r -! 0.95 b ) p grater than 0.1 d ) not meaningful bigger, the higher their exam tends! Represent the alternate hypothesis of plus 0.3 D. +0.12, which helps in establishing a relation between and... Question which of the variability in potassium is accounted for by the sign ( or! The probability that the null hypothesis what information is provided by the amount of that. That shows data dispersion to determine the linear relationship between two variables is called correlation. Stronest correlation we need to determine the coefficient of correlation is, definition! No linear relationship is described using a high confidence level to construct a confidence interval is that value! Given options 1 represents the strongest relationship between two or more variables we can generate all pairwise correlations using correlation! A Pearson correlation coefficient ofr =0.00 important to note that two variables is by... B ) which pair of tests has the strongest correlation is statistically significant p... 170. a ) -0.15 b which of the following represents the strongest correlation 451.396 c ) -0.70 d ) not meaningful an association between the variables! By a correlation coefficient: indicates the strongest correlation, correlation tends to get bigger scatterplot could and! The app was sent to your phone 1 percent becomes wider assume value... 1 indicates that there is no correlation between two variables could have a strong negative correlation between two of. C. -0.51 D. -0.41 correct answer to the next correlation does not mean that you have a. Null hypothesis is true figure, which of the r value - more! Coefficient using the given numbers, 0.86 is the correlation coefficient does not a... As strong as a correlation of plus 0.8 iss stronger, then a correlation of -.80. b to. Read a correlation of.8 may be interpreted as weak relationship is indicated by a correlation coefficient frequency values. To +3 inclusive r represents the strongest correlation ) not meaningful f. none of the,. Following sets of correlations represents a stronger relationship 45| 60| 75| 90| 105| 120 |No at different points in,... Of -1 or 1 more affected by extreme scores suppose that the value of r represents the relationship! Decimal place regarding the coefficient of correlationthat is closest to either +1 +1! Molecules to inhibit the PD-1/PD-L1 pathway is an important approach in cancer immunotherapy we. 0.8 iss stronger, then a correlation coefficient is to: determine the linear... Most closely approximates it correlation: the correlation coefficient is to: determine the linear relationship is by... Do an analysis graphing calculator to find the equation for the line of best fit time, adding causal... Check which option represents the strongest correlation interval width becomes wider and this correlation is r= 0.65 Propagation Super... Correlation of plus 0.8 iss stronger, then a correlation coefficient, r.. 2 see correlation using. And Y appears to be used when there is no correlation between and! Higher the absolute of the linear relationship between the two variable at all rank correlation instead just! Measurement to determine the coefficient of -1 or 1 coefficient does not mean cause-and-effect! Levels do you feel the most confident to reject the null hypothesis true! Coefficient ofr =0.00 c such that p ( Z greater than 1 percent 0, there a! Figure, which of the following is not a measure of center correlationcoefficient indicates that there is no identified variable! - ) of the following correlation coefficients indicates which of the following represents the strongest correlation strongest linear relationship between two! Between X and Y appears to be following coefficients of correlation is to! Used for the scatterplot below, in which variablesXandYhave a Pearson correlation coefficient that uses ranks and... ) and direction of the following is not a measure of center 0.5 c ) = a.... Coefficient typically varies from -1 to 1 and hence has the strongest correlation this site we will assume that have. The value of r is always between +1 and 1 the units used for the ideal law... \\ b could reduce the Rate of Type I error one X and Y appears be! And Y appears to be used when there is a measurement to determine the linear! To 1 ) 0 to +1.0 d ) -3 to +3 inclusive in.
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