Chapter 10.2B, Problem 4A

The heights reached by $15$ model rockets launched by the students in Mr. Fiori’s science class are shown in the stem and leaf plot below.

Height reached by rockets (in feet)

1	$90$
2	$24$	$38$
2	$75$	$89$	$98$	$99$		( $2|75$ represents $275\text{ft}\text{.}$)
3	$10$	$12$	$19$	$20$	$25$
3	$52$	$55$
4	$02$

a. What is the least height reached by one of the rockets?

b. What is the greatest height reached?

c. What percentage of the rockets flew above $300$ feet?

d. Draw a histogram based on the stem and leaf plot.