If the standard deviations of x and y are 12.5 and 10.8,respectively,and the covariance is 118.8,then the coefficient of correlation r is 0.88.

Question

Quizplus · Accepted Answer

To calculate the coefficient of correlation, we use the formula: r = covariance / (standard deviation of x)(standard deviation of y). Substituting the given values, we get r = 118.8 / (12.5)(10.8) = 0.88. Therefore, the statement is true.

If the Standard Deviations of X and Y Are 12