Question

find the dank correlation. Rx 1,2,3,4,5,6,7. Ry 4,3,1,2,6,5,7.
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Answer 1

Answer:

cov(x,y)=−2.25,

var(x)=6.25,

and var(y)=20.25

ρ(x,y)=?

ρ(x,y)=

var(x)

var(y)

cov(x,y)

=

2.5×4.5

−2.25

=

45

−9

=−

5

1

=−0.2

∵ value of ρ is negative

∴ correlation is negative

Step-by-step explanation:

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