Conditional mean and variance for joint PDF

Find the conditional mean and variance

  • What's the probability space?

  • All information are given in the file. I think we need to find the value of the constant first.

  • No, sorry, that doesn't make sense to me. f must be a function from a probability space to R. As presented, it's a function from RxR to R, but RxR is not a probability space. I guess one can restrict to the subspace defined by x>0, y>0, 1

  • Also k only influences the value of the function, not the domain, so that's not to be considered.


Answers can be viewed only if
  1. The questioner was satisfied and accepted the answer, or
  2. The answer was disputed, but the judge evaluated it as 100% correct.
View the answer

1 Attachment

Erdos Erdos
The answer is accepted.
Join Matchmaticians Affiliate Marketing Program to earn up to 50% commission on every question your affiliated users ask or answer.