a.)what is the probability that a randomly seleced CEO received more that $750,000 in 1997?

b.)Explain why the assumption of a normal distribution may be very unlikely.

c.)a sample of 20 CEOs is taken and salaries and bonus compensations are reported. What is the probability that the sample mean salary and bonus compensation falls between $600,000 and $700,000

d.)explain why any normal distrubtion can be used to answer part c with more confidence than part a