A telemarketing firm uses a computer connected to an online phone book for Metropolis. A large number

Question:

A telemarketing firm uses a computer connected to an online phone book for Metropolis. A large number of messages are sent, but on average only 10 people per hour listen to such messages. Let X be the number of people who listen to these messages during a given hour.
a. What is the probability that there will be exactly 8 successful calls in the next hour?
b. How many hours are expected to pass until the first hour with exactly 8 people listening to the messages? What is this?
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...