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Cambridge Mathematics 9: Processing and interpreting data

10 questions with solutions on the Cambridge Mathematics 9 topic: mean, median, mode, range, frequency tables, grouped data.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. What is the mean of 4, 7, 9, 10 and 15?

2. The median of 3, 8, 5, 12, 7, 10?

3. The mode of 2, 3, 3, 5, 7, 7, 7, 9?

4. The range of 12, 4, 19, 8, 15?

5. The mean of 5 numbers is 8. What is their total?

6. The mean of 4 numbers is 6. The number 11 is added. What is the new mean?

7. Scores 1, 2, 3 have frequencies 2, 5, 3. What is the mean?

8. Groups 0–10 (frequency 4) and 10–20 (frequency 6). Estimate the mean using the midpoints.

9. Which average is best when there is one extreme value (outlier)?

10. Stem-and-leaf: 2 | 3 5 8 and 3 | 1 4. What is the median?