Exhibit computation:

The average stock price for companies making up the S&P 500 was $30, and the standard deviation was 8.20 dollars (BusinessWeek, Special Annual Issue).

Assume the stock prices are normally distributed.

a What is the probability that a company will have a stock price of at least 40 dollars?

b What is the probability that a company will have a stock price no higher than 20 dollars?

c How high does a stock price have to be to put a company in the top 10%

d Create a probability histogram illustrating the given problem

e Make a report or recommendation