0580/12 Feb/Mar 2023, Question 17: Averages from Frequency Tables
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 3 marks
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The question, in short
Using a frequency table for 40 weeks of calculator sales, work out the mean number sold per week.
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Solution · 3 marks
- 1Σfx = 0×14 + 1×12 + 2×6 + 3×5 + 4×0 + 5×2 + 6×1
- 2= 12 + 12 + 15 + 0 + 10 + 6 = 55
- 3Mean = 55 ÷ 40 = 1.375
Answer1.375
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