Question

For 50 students of a class, the regression equation of marks in statistics (X) on the

marks in accountancy (Y) is 3Y – 5X + 180 = 0. The mean marks in accountancy is

44 and the variance of marks in statistics is (9/16)th of the variance of marks in

accountancy. Find mean marks in statistics and the coefficient of correlation between

marks in the two subjects.​

Answer 1

Answer:

equation of marks in statistics (X) on the

marks in accountancy (Y) is 3Y – 5X + 180 = 0. The mean marks in accountancy is

44 and the variance of marks in statistics is (9/16)th of the variance of marks in

accountancy. Find mean marks in statistics and the coefficient of correlation between

marks in the two subjects.