Recent content by James1990

  1. J

    Graduate Calculate E(x^2) Given I.I.D. N(0,1) Random Variables

    How to calculate E(x^2) given that x are i.i.d random variables distributed as a standard normal i.e. N(0,1) ? Thank you.
  2. J

    Undergrad How Do You Calculate E(XY) for Dependent Variables with Given Observations?

    Hi everyone, I was searching an answer for E(XY), where X and Y are two dependent random variables, number of observations n=21 and Sum(x*y)= 1060.84. Can somebody help me? It's not mentioned, but I think that each x and y of the distributions have the same probability to occur. Thank you.