Averages & Data
12 free practice questions with explanations
PassNova has 12 free 11+ Maths practice questions on Averages & Data, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Averages & Data: example questions & answers
12 worked examples with answers and explanations below. Practise them in the browser with instant feedback on every answer.
What is the mean of 4, 7, 9, 8?
- A28
- B5
- C8
- D7✓
Answer: Add them up: 28. There are 4 numbers, so the mean is 28 ÷ 4 = 7.
What is the mean of 12, 15, 9, 20?
- A14✓
- B56
- C11
- D15
Answer: Add them up: 56. There are 4 numbers, so the mean is 56 ÷ 4 = 14.
What is the mean of 3, 6, 6, 9, 11?
- A35
- B8
- C7✓
- D6
Answer: Add them up: 35. There are 5 numbers, so the mean is 35 ÷ 5 = 7.
What is the mean of 22, 18, 25, 15?
- A80
- B10
- C22
- D20✓
Answer: Add them up: 80. There are 4 numbers, so the mean is 80 ÷ 4 = 20.
What is the mean of 5, 8, 11, 14, 12?
- A50
- B10✓
- C9
- D11
Answer: Add them up: 50. There are 5 numbers, so the mean is 50 ÷ 5 = 10.
What is the median of 3, 7, 9, 11, 15?
- A12
- B9✓
- C3
- D15
Answer: Put them in order: 3, 7, 9, 11, 15. The median is the middle one, 9.
What is the median of 2, 4, 6, 8, 10, 12?
- A10
- B7✓
- C2
- D12
Answer: Put them in order: 2, 4, 6, 8, 10, 12. The median is the middle one, 7.
What is the median of 21, 14, 17, 19, 25?
- A19.2
- B11
- C19✓
- D14
Answer: Put them in order: 14, 17, 19, 21, 25. The median is the middle one, 19.
What is the median of 6, 6, 8, 12, 14?
- A9.2
- B6
- C14
- D8✓
Answer: Put them in order: 6, 6, 8, 12, 14. The median is the middle one, 8.
What is the range of 4, 9, 2, 11?
- A9✓
- B11
- C2
- D6.5
Answer: The range is the biggest minus the smallest: 11 − 2 = 9.
What is the range of 15, 6, 21, 9?
- A15✓
- B21
- C6
- D12.75
Answer: The range is the biggest minus the smallest: 21 − 6 = 15.
What is the range of 30, 12, 25, 18?
- A30
- B12
- C18✓
- D21.25
Answer: The range is the biggest minus the smallest: 30 − 12 = 18.