Determine the covariance and correlation for X1 and X2 in the joint distribution of the multinomial random

Question:

Determine the covariance and correlation for X1 and X2 in the joint of the multinomial random variables X1, X2 and X3 in with p1 = p2 = p3 = 1/3 and n = 3. What can you conclude about the sign of the correlation between two random variables in a multinomial Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...