Recent content by backtoschool93

Thank you all for the responses, they are very helpful!

Okay, that is helpful--I think I understand it enough to figure out the rest of the problem. Thank you very much!

Thank you! However, I am still not sure that I follow... I am starting with Var(Y) = E[Var(Y|X)] + Var[E(Y|X)] and all I know is that E(Y|X) = nP (with P having a uniform 0,1 distribution). Therefore, Var(Y) = E[E(Y^2|X) − {E(Y|X)^2}] + Var[n/2] = E[E(Y^2|X) - (n^2/4)] + Var(n/2) Once I get...

Homework Statement Random variable Y has a binomial distribution with n trials and success probability X, where n is a given constant and X is a random variable with uniform (0,1) distribution. What is Var[Y]? Homework Equations E[Y] = np Var(Y) = np(1-p) for variance of a binomial...