Question 1. For given two regression equations x = – 0.4y + 6.4 and y = – 0.6x + 4.6, The mean of y is (a)1 (b)2 (c)3 (d)4 Question 2. Chi-square is used to analyze: Squares Ranks frequencies All of above Question 3. Calculate the co-efficient of correlation between x and y for the … Continue reading For given two regression equations x = – 0.4y + 6.4 and y = – 0.6x + 4.6, The mean of y is