
Covariance
http://img696.imageshack.us/img696/6/88743346.png
I tried using the formula:
$\displaystyle cov[V,W] = E[VW]  E[V]E[W]$
I assumed this takes on a binomial distribution with
$\displaystyle E[X] = np$
Hence for E[V] and E[W] I obtained 0.55n and 0.45n respectively. After this I am stuck on this question.
Any hints would be greatly appreciated!
Linda

Re: Covariance
Hi lindah, the link to your question is broken on my browser.

Re: Covariance
Hi pickslides,
On my browser it is embedded in the post. Here is the text link for the image.
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Thank you for letting me know