4) Use the stem-and-leaf plot below to answer the following questions. The stem-and-leaf plot displays the ages of 30 swimmers who participated in a swim meet.
Stem
Swimmers
2
0011224489
3
0123559
4
12 3 3 5 8
5
1 1 2 35
6
0 1
a). What is the age of the oldest swimmer?
b) What is the age of the youngest swimmer?
c) How many swimmers were at least 40 years old?
