4MA1/2H Jun 2019, Question 7: Mean, Median, Mode and Range
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2H (Higher) · Calculator · 3 marks
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The question, in short
30 students took a Mathematics test with mean mark 26.8. 13 of the students are boys with mean mark 25. Find the mean mark for the girls, to 3 significant figures.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 130 × 26.8 = 804
- 213 × 25 = 325
- 3804 − 325 = 479
- 430 − 13 = 17
- 5479 ÷ 17 = 28.1764...
- 628.2
Answer28.2
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