Seven balls are distributed randomly into seven cells. Let Xi = the number of cells containing exactly

Question:

Seven balls are distributed randomly into seven cells. Let Xi = the number of cells containing exactly i balls. What is the probability of X3? (That is, find P(X3 = 1) for every possible x.) 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...