On average, 30-minute television sitcoms have 22 minutes of programming

On average, 30-minute television sitcoms have 22 minutes of programming (CNBC, February 23, 2006). Assume that the probability distribution for minutes of programming can be approximated by a uniform distribution from 18 minutes to 26 minutes.
a. What is the probability a sitcom will have 25 or more minutes of programming?
b. What is the probability a sitcom will have between 21 and 25 minutes of programming?
c. What is the probability a sitcom will have more than 10 minutes of commercials or other non-programming interruptions?
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...