He can simulate two random variables X and X' with the same distribution as X in the computer. Repeated samples estimate the expected value of (XX')^2 to be 20. With this information, the variance of X can be computed.
Kisan Call Centre - To harness potential of ICT in Agriculture by answer farm...
Information he has access to He can simulate two independen.pdf
1. Information he has access to: He can simulate two independent random variables in the computer
with the same distribution of X (call these X and X ) and estimate (from repeated samples) E[(XX)2
]=20. Using the information above, compute var(X).