Question

Fiona has to plot a histogram of the given data.

82, 83, 89, 67, 65, 88, 66, 69, 83, 81, 94, 68, 82, 69, 86, 83, 88, 62, 64, 93

Which frequency table should she use for the histogram?
a. internal: 60-70/ 70-80/ 80-90/ 90-100
frequency: 8/ 0/ 10/ 2
b. internal: 56-63/ 63-70/ 70-77/ 77-84/91-98
frequency: 1/7/0/5/2
c. internal: 50-70/ 70-80/ 80-85/85-90/90-100
frequency: 8/0/6/4/2
d. internal: 60-75/ 75-90/ 90-105
frequency: 8/10/2