4MA1/2F Jan 2021, Question 16: Mean, Median, Mode and Range
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 3 marks
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The question, in short
Find five whole numbers whose median is 7, mode is 8 and range is 5.
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Solution · 3 marks
- 1In order, the middle (3rd) number is the median, so it is 7
- 2Mode 8: the two largest numbers are 8 and 8
- 3Range 5: smallest number = 8 − 5 = 3
- 4The 2nd number is between 3 and 7 and used once: 4, 5 or 6
- 53, 7, 8, 8 and one of 4 or 5 or 6
Answer3, 7, 8, 8 and one of 4 or 5 or 6
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