The following set of numbers represents the number of hours a group of students spent reading over the course of two weeks.
3, 19, 11, 29, 4, 6, 10, 16, 2, 21, 15, 22, 13, 9, 1, 17, 2, 26, 18, 7
on your own sheet of paper, graph the set on a histogram, using six intervals in the display. make sure to label your graph.

Find 6 intervals to use:

We can use 0-4, 5-9, 10-14, 15-19, 20-24 and 25-29

Then count the numbers from the list in each group:

0-4  there are 5 numbers in this group

5-9 there are 3

10-14 there are 3

15-19 there are 5

20-24 there are 2

25-29 there are 2

Now create the histogram, with the vertical axis labeled from 0 to 5 and the horizontal axis labeled with your six groups:

See attached picture:

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.