0580/12 Oct/Nov 2021, Question 22: Relative Frequency and Expectation
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks
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The question, in short
Using the proportion of left-handed people in a sample of 650 where 117 are left-handed, work out how many left-handers would be expected among 5000 people.
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Solution · 2 marks
- 1Fraction left-handed = 117/650 = 0.18
- 2Expected number = 0.18 × 5000 = 900
Answer900
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Also searched as: 0580/12/O/N/21 · 0580_w21_qp_12 · 0580 w21 12 · question 22.
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