A sample of the salaries of assistant professors on the business faculty at a local university revealed a mean income of $100,000 with a standard deviation of $10,000. Assume that salaries follow a bell-shaped distribution. Use the empirical rule to answer the following questions. a. Approximately what percentage of the salaries fall between $90,000 and
$110,000?
b. Approximately what percentage of the salaries fall between $80,000 and
$120,000?
c. Approximately what percentage of the salaries are greater than $120,000?