Correct Answer - Option 1 : 0.96

**Given **

Correlation coefficient between x on y = 0.75

Standard deviation of x and y = 5 and 6.4

**Formula **

Correlation coefficient ‘r’ = Cov(x,y)/S_{x}S_{y}

Cov(x,y) = Coveriance of x and y

S_{x} = Standard deviation of x

S_{y} = Standard deviation of y

Correlation coefficient of y on x = b_{yx} = Cov(x,y)/S_{x}^{2}

**Calculation**

0.75 = Cov(x,y)/5 × 6.4

⇒ Cov(x,y) = 0.75 × 5 × 6.4

⇒ Cov(x,y) = 24

⇒ b_{yx} = 24/5^{2}

∴ b_{yx} = 24/25

**∴**** correlation coefficient of y on x is 0.96**