Statistics

Create stem-and-leaf plots for the following sets of data.

1. An English teacher asked her students how many books they read over the last two years. Their responses were: 13, 11, 25, 27, 8, 18, 32, 21, 18, 29, 22, 17, 9, 28, 31.

The stem and leaf plot below shows the grade point averages of the students in Mr. Smith’s math class.

0	8
1	2 4 4 6 7
2	0 4 5 5 6 7 9
3	2 3 5 8
4	0

2. What is the range of the data?

3. How many students have a GPA of 2 or higher?

4. What is the mode of the data?

5. What is the median of the data?

6. How many students are in Mr. Smith’s math class?