The IQs of nine randomly selected people are recorded. Let Y denote their average. Assuming the distribution

Question:

The IQs of nine randomly selected people are recorded. Let Y denote their average. Assuming the from which the Yi's were drawn is normal with a mean of 100 and a standard deviation of 16, what is the probability that Y will exceed 103? What is the probability that any arbitrary Yi will exceed 103? What is the probability that exactly three of the Yi's will exceed 103? 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...