Suppose that customer waiting times are independent and can be modeled by a Weibull distribution with a

Question:

Suppose that customer waiting times are independent and can be modeled by a Weibull with a = 2.3 and A = 0.09 per minute. What is the probability that out of 10 customers, exactly 3 wait less than 8 minutes, exactly 4 wait between 8 and 12 minutes, and exactly 3 wait more than 12 minutes'.'
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...