The data below shows average number of text messages a group of students send per day. what is a histogram that represents the data? 20 5 8 22 10 1 7 15 16 12 15 6 13 8

The graph is attached.

Step-by-step explanation:

The range of this data is the highest value, 22, subtracted by the lowest value, 1:  22-1 = 21.

Using boundaries, the first bar would go from 0.5-3.5; the second from 3.5-6.5; the third from 6.5-9.5; the fourth from 9.5-12.5; the fifth from 12.5-15.5; the sixth from 15.5-18.5; the seventh from 18.5-21.5; and the eighth from 21.5-24.5.

The frequency of the first bar, its height, would be 1; the height of the second bar is 2; the height of the third bar is 3; the height of the fourth bar is 2; the height of the fifth bar is 3; the height of the sixth bar is 1; the height of the seventh bar is 1; and the height of the eighth bar is 1.

answer: the common difference is -0.10