3 years ago

NEED HELP!!!!! Heres the question

Mathematics

1 answer:

Semenov [28]3 years ago

3 0

Answer:

A. 5(-20)

Step-by-step explanation:

Since she repeatedly withdrawals money, the answer would be negative, so you can say that the other answers are definitely wrong.

Hope this helps :)

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By definition of covariance,

$\mathrm{Cov}(X,Y)=\mathbb E[(X-\mathbb E[X])(Y-\mathbb E[Y])]$

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Putting everything together, we find the covariance reduces to

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3 years ago

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Step-by-step explanation:

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