AQA
GCSE
Maths
Grouped data
AQA GCSE Maths revision on Grouped data. Aligned to the AQA GCSE Mathematics 8300 specification. This bank has 16 practice questions on this topic.
Sample questions (3 of 16)
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Question 1
Modal class with frequencies: 0-10: 5, 10-20: 12, 20-30: 8.
- A) 0-10
- B) 10-20
- C) 20-30
- D) Cannot tell
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Answer: 10-20
Modal class = class with the highest frequency. Frequencies: 5, 12, 8. Largest is 12 -> class 10-20.
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Question 2
Class width of 20-30 is...
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Answer: 10
Class width = upper boundary - lower boundary = 30 - 20 = 10.
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Question 3
Midpoint of class 30-50?
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Answer: 40
Midpoint = average of class boundaries. (30+50)/2 = 40. Used for estimating means of grouped data.
Want to test yourself on the remaining cards for this topic?
13 more questions on Grouped data — plus mistakes tracking and spaced repetition across the whole Maths spec.