A state's turnpike authority finds its annual toll revenues to be normally distributed with a mean of $700,000 and a standard deviation of $50,000....

2. A state's turnpike authority finds its annual toll revenues to be normally distributed with a mean of $700,000 and a

standard deviation of $50,000. The manager wants to know:

A. the size of revenue in the best 10 percent of the years.

B. the probability that next year's operating expenses of $680,000 will be covered.