0580/42 Oct/Nov 2025, Question 6: Mean, Median, Mode and Range
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 4 marks
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The question, in short
Using a stem-and-leaf diagram of 8 waiting times plus a mean of 16 minutes and range of 26 minutes for all 10 patients, find the waiting times of patients P and Q, where P waits longer.
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Solution · 4 marks
- 1Total of all 10 times = 10 × 16 = 160
- 2Sum of the 8 shown = 1 + 4 + 10 + 12 + 19 + 21 + 25 + 25 = 117
- 3Shortest time is 1, so longest = 1 + 26 = 27 (longer than 25), so P = 27
- 4Q = 160 − 117 − 27 = 16
- 5Patient P = 27 minutes, Patient Q = 16 minutes
AnswerPatient P = 27, Patient Q = 16
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Also searched as: 0580/42/O/N/25 · 0580_w25_qp_42 · 0580 w25 42 · question 6.
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