The coefficient of correlation between the two variables X and Y is 0.6. Their covariance is 3.6 and variance of X is 4. The variance of Y is3.55.54.59

If for two variable x and y, the covariance, variance of x and variance of y are40, 16 and 256 respectively, what is the value of the correlation coefficient?(a) 0.01(b) 0.625(c) 0.4(d) 0.5

Let X and Y be two random variables with covariance Cov(X,Y) = 3 and variances Var(X) = 4 and Var(Y) = 9. What is the correlation coefficient between X and Y?Review Later1/31/21/41/5

The covariance between two variables X and Y is 8.4 and their variances are 25and 36 respectively. Calculate Karl Pearson’s coefficient of correlation betweenthem.(a) 0.82(b) 0.28(c) 0.01(d) 0.09

Assuming a linear relationship between X and Y, if the coefficient of correlation (r) equals – 0.30, A. the variance of X is negative. B. variable X is larger than variable Y.                          C. there is no correlation.                                      D.  the slope (b1) is negative.

The following data represents the scores of two variables, x and y: x: 10, 15, 20, 25, 30 y: 20, 25, 30, 35, 40 The correlation coefficient between x and y is:a.0.7b.0.8c.0.9d.1