The age distribution of students at a community college is given below.

Question

Age (years)	Number of students
Under 21	417
21-25	414
26-30	212
31-35	50
Over 35	20
Total	1113

A student from the community college is selected at random. Find the probability that the
student is at least 31. Round approximations to three decimal places. Show all work for
your calculations.

Answer 1

There are 50+20=70 students 31 or more years old. So the probability is 70/1113=10/159=0.062893 approx or 6.289%.