Question

Vo(19)-(3) V6(34)-(4)
(10.25) (13.71)
0.94
EXERCISE 8 (B)
standard deviation of Y is 5.196, find the S.D. of X.
X is 9. Find the standard deviation of Y.
if co-variance between X and Y variables is 6.1 and the variance of X and Y are respectives
and 9.6, find the coefficient of correlation.
For variates X and Y having 10 pairs of observations, the following calculations are made :
EX = 250, EY = 300, EXY = 7900, EX2 = 6500, EY2 = 10000
Find coefficient of correlation between X and Y.
The following results are obtained between two series from their respective means. Compute the
co-efficient of correlation.
Caries
Clearly there is a high degree of negative correlation between size and defect in quality.
1. Coefficient of correlation between two variables X and Y is 0.8 and their co-variance is
E. Coefficient of correlation between X and Y variables is 0.25, the co-variance is 7.5 and variant​

Answer 1

Answer:

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