Question

Find the covariance between X and Y from the following data.
1
3
5
8
9
10
Y
3
4.
8
10
12
11
a) 64 b) 353
c) 300
d) 70​

Answer 1

Answer:

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Answer 2

Answer:

Covariance is defined for the pair of random variables which is associated or related to each other. It is the average product of individual deviation from the corresponding means.

Cov(x,y)=1/n∑(xi-∪xi) (yi-∪yi)

Cov(x,y)=∑xy/n - (∑x/n) (∑y/n)

n=9, ∑X=45,  ∑Y=44

Cov(x,y)= ∑xy/n  (∑x/n)  (∑y/n)

Cov(x,y)=263/9 - (45/9) (44/9)=4.78

Step-by-step explanation: