A male apparel company surveyed men to find out how old their oldest pair of underwear is. The results are summarized below:

Less than1 year is 21%

1-4years is 56%

5-9 years is 14%

10-19years is 5%

20or more years is 4%

Based on these results:

(a)What is the probability that a randomly selected man has a pair of underwear that is older than4 years?9years?

(b)What is the probability that a randomly selected man has no pair of underwear more than a year old?

(c)What is the probability that a randomly selected man has no underwear more than9

years old?