Question

3.) Last year, I gave a quiz to 200 students. Suppose the five-number summary of the grades was 41, 59, 66, 80, 91. Assume that no two people received the same score. Use this five-number summary to answer the following questions:

(a) How many students scored above 80?

(b) In our survey, 50 students scored below what grade?

4. Suppose that the mean amount of money that credit card companies charge for a late fee is $150 with a standard deviation of $10. Use Chebyshev’s Theorem to answer the following questions:

(a) At least what percentage of credit card companies charge a late fee between $137 and $163?

Answer 1