Make a stem plot for each set of data. Then find the mean, median, mode, and range of each set of data. 9. Test grades for class A: 84, 92, 48, 87, 91, 98, 52, 84, 96, 75, 41, 90, 84, 92, 80

Mean =
median =
mode =
range =

Use the data from question 9 and 10 to answer the following questions

11. Which class had the higher average (mean)?

12. Which class had the higher median?

13. Which class do you think did better on the test? Explain your reasoning.