Question

According to the stem-and-leaf plot above, how many drivers travel below 80 miles hour per hour?

A 2

B 14

C 6

D 5

Answer 1

B) 14

Explanation:

A stem and leaf plot is a method to plot data where the data is spilt into stems (largest digit) and leaves (the smallest digit).

Drivers who travel below 80 miles per hour are:

5 is the stem and 4, 6, 9 are the leaves. So, the data is:

54, 56, 59

6 is the stem and 2, 2, 3, 4, 8 are the leaves. So, the data is:

62 ,62, 63, 64, 68

7 is the stem and 0, 0, 1, 2, 2, 3 are the leaves. So, the data is:

70, 70, 71, 72, 72, 73

14 drivers.