PassNova has 6 free KS3 Maths practice questions on Statistics, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Statistics: example questions & answers
6 worked examples with answers and explanations below. Practise them in the browser with instant feedback on every answer.
What is the mean of 4, 6, 8 and 10?
- A6
- B7✓
- C8
- D28
Answer: Mean = (4 + 6 + 8 + 10) ÷ 4 = 28 ÷ 4 = 7.
What is the median of 3, 7, 9, 12, 15?
- A7
- B9✓
- C12
- D9.2
Answer: The median is the middle value of the ordered list. With five values, the third value (9) is the median.
What is the mode of 2, 3, 3, 5, 7, 3, 8?
- A2
- B3✓
- C5
- D8
Answer: The mode is the value that appears most often. 3 appears three times, more than any other.
What is the range of the data 12, 5, 9, 20, 7?
- A15✓
- B20
- C5
- D7
Answer: Range = largest − smallest = 20 − 5 = 15.
Which chart is best for showing how a whole is split into parts/proportions?
- APie chart✓
- BLine graph
- CScatter graph
- DFrequency table
Answer: A pie chart shows how a total is divided into proportional categories.
In a tally chart, how is the number 5 usually shown?
- AFive separate vertical lines
- BFour vertical lines with a fifth crossing them✓
- CA circle
- DThe digit 5 only
Answer: Tallies are grouped in fives: four vertical lines with a fifth drawn diagonally across them.