Respuesta :

Answer:

B) 14

Step-by-step 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.