Question

Given the following set of data X 10 20 30 40 50 60 70 Y 34 46 48 53 55 63 65, determine the Pearson's product-moment coefficient of correlation (r).

a) 0.85
b) 0.92
c) -0.76
d) 0.45

Answer 1

The Pearson's product-moment coefficient of correlation (r) measures the strength and direction of the linear relationship between two variables.

Step-by-step explanation:

The Pearson's product-moment coefficient of correlation (r) measures the strength and direction of the linear relationship between two variables. To calculate r, we first need to find the mean and standard deviation of the x and y values. Then, we calculate the covariance between x and y. Finally, we divide the covariance by the product of the standard deviations of x and y. In this case, the Pearson's product-moment coefficient of correlation (r) would be 0.92.