Given, coefficient of correlation between x and y,r=0.8 Regression coefficient of y an x,byx=0.2 We know that, r=√bxy⋅byx ⇒‌‌0.8=√bxy⋅0.2 On squaring both sides, we get ‌(0.8)2=bxy⋅0.2 ‌⇒‌‌bxy=‌
0.64
0.2
‌⇒‌‌bxy=3.2 ‌ Hence, regression coefficient of x on y, bxy=3.2