Question

If the coefficient of correlation between two variables is 0.7 then the percentage of variation unaccounted for is
(a) 70%
(b) 30%
(c) 51%
(d) 49%​

Answer 1

Answer:

c

Step-by-step explanation:

Given:  the coefficient of correlation between two variables is 0.7.

then the percentage of variation accounted for is given by

= square of coefficient of correlation

=  0.7^2 = 0.49

then the percentage of variation unaccounted for is = 1-0.49 =0.51

hence option c is correct