West middle school has classes of many different sizes during first period. The number of students in each class is shown.
9,23,18,14,20,26,14,18,18,12,8,13,2 1,22,28,10,7,19,24,20

a. Hank made a histogram using intervals of 6-10,11-15 and so on. how many bars did his histogram have? What was the height of the highest bar?

b. lisa made a histogram using intervals of 0-9,10-19, and so on. How many bars did her histogram have ? What was the height of the highest bar?

c besides a histogram, what are some other ways you could display these data?

Plz help me right away