Question

Use the Empirical Rule or Chebyshev's Theorem to answer the following questions:

1. Starting salaries for recent college graduates from a midwestern college have a normal distribution with a mean of $32.800 and a standard deviation of $1800. Approx. what % of graduates have starting salaries between $31,000 & $34,000? Answer __________

2. Electric bills for the month of August have a bell-shaped distribution with a mean of $224 and a standard deviation of $22. What % of households have a bill greater than $180? Answer____________

3. Suppose that salaries for associate mather professors at a midwestern college have a mean of $42,500 and a standard deviation of $4300. What is the minimum % of associates professions with salaries between $33,900 & $51,100? Answer _____

Answer 1