A contractor has four new home plans. Plan 1 is a home with six windows. Plan 2

Question:

A contractor has four new home plans. Plan 1 is a home with six windows. Plan 2 is a home with seven windows. Plan 3 has eight windows, and plan 4 has nine windows. The probability for the sale of the homes is shown. Find the mean, variance, and standard deviation for the number of windows in the homes that the contractor builds.

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...