Chapter 4.1, Problem 15E

The frequency distribution shown in Figure $4.27$ lists the ages of $200$ randomly selected students who received a bachelor’s degree at State University last year. Where possible, determine what percent of the graduates had the following ages.

a. less than $23$

b. at least $31$

c. at most $20$

d. not less than $19$

e. at least $19$ but less than $27$

f. not between $23$ and $35$

Ages (years)	Number of Students
$10\le x<15$	$1$
$15\le x<19$	$4$
$19\le x<23$	$52$
$23\le x<27$	$48$
$27\le x<31$	$31$
$31\le x<35$	$16$
$35\le x<39$	$29$
$39\text{ and over}$	$19$

Figure $4.27$ Age of students