4MA1/1FR Jun 2020, Question 20: Estimating the Mean for Grouped Data
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1FR (Foundation) · Calculator · 4 marks
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The question, in short
Using the grouped frequency table for 60 students' travel times in minutes, estimate the mean travel time and give the answer to one decimal place.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 4 marks
- 15 × 4 = 20
- 215 × 10 = 150
- 325 × 15 = 375
- 435 × 25 = 875
- 545 × 6 = 270
- 620 + 150 + 375 + 875 + 270 = 1690
- 71690 ÷ 60 = 28.166...
- 828.2
Answer28.2
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