Pradi

This page lists questions and answers that were posted by visitors named Pradi.

Questions

The following questions were asked by visitors named Pradi.

Answers

The following answers were posted by visitors named Pradi.

not so sure, what do you think about this reasoning: B) Cov(X,Y)= ? if Heads with p=1/2 (fair coin): Cov(X,Y) = E[XY] - E[X]E[Y] = E[XY] = E[X^2] = var(X) -(E[X])^2 = var(X) = 1 if Tails with p=1/2: Cov(X,Y) = E[-X^2] = - E[X^2] = -var(X) = - 1 Cov(X,Y)=...