1. The following set of numbers is going to be graphed on a histogram.
19, 11, 29, 6, 10, 16, 21, 15, 22, 13, 9, 17, 26, 18, 7
If there are going to be six intervals in the display, what will the first interval be?
6-10
6-11
1-10
2. The following histogram represents the number of hours students practice each week for the band.
How many students practiced for at least three hours?
16
20
14