Make a stem-and-leaf plot of each set of data

Thirty-five students took a quiz. The score were 7, 10, 6, 7, 2, 9, 6, 0, 20, 10, 16, 18, 10, 18, 10, 6, 18, 20, 20, 24, 18, 27, 21, 21, 12, 15, 24, 15, 12, 21, 30, and 21.

3. Construct a stem-and-leaf plot for the data.

4. What was the highest score?

5. What was the lowest score?

6. What was the mode score?

7. Make two or three statements about the data.

The age of the first thirty people into a concert on Friday were: 19, 21, 24, 18, 20, 20, 19, 17, 20, 23, 18, 20, 21, 20, 24, 25, 22, 1, 25, 18, 19, 20, 21, 18, 19, 20, 21, 19, 22, 23, 17, 25, and 23.

8. Construct a stem-and -leaf plot for the data.

9. How old was the oldest person?

10. How young was the youngest person?

11. What was the median age?

12. What might account for the limited range of years?