Cumulative frequency GCSE questions
Cumulative frequency GCSE questions with worked answers. Attempt them first, then check. Full method is on the Cumulative frequency lesson.
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Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
There are 80 values. At what cumulative frequency do you read the median?
Q1 is 12 and Q3 is 28. IQR?
Common mistakes
- Plotting at the midpoint instead of the upper bound.
- Using n/2 on a list of group labels rather than on the vertical cf axis.
Answers and working
Frequently asked questions
Where is the full lesson?
See Cumulative frequency: https://revise-easy.com/gcse-maths/statistics/cumulative-frequency/
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