Question

The coefficient of correlation between two variables x and y is 0.8 while the regression coefficient of y on x is 0.2. Then the regression coefficient of x on y is

• A. – 3.2
• B. 3.2
• C. 4
• D. 0.16

Answer 1

Answer: (B)

3.2

Answer 2

$0.8 = \sqrt{0.2 \times b_{yx}} \Rightarrow b_{yx} = \frac{0.64}{0.2} = 3.2$.