13. The standard error of the estimate (Se) is essentially the ____.

A. Suppose that sales in a Wal-Mart store are normally distributed with a mean of $80 million and a standard deviation of $ 10 million.

1. What is the probability that sales will be less than or equal to $85 million?

2. What is the probability that sales will exceed $90 million?

B. The stock price of Wal-Mart is normally distributed with a mean of $ 90 and a standard deviation of $ 2.

1. What is the probability that the stock price of Wal-Mart will be between $70 and $95?

2. What is the probability that the stock price of Wal-Mart will exceed $100?