0580/31 May/Jun 2025, Question 19: Averages from Frequency Tables
Cambridge IGCSE Mathematics 0580 · Paper 31 (Core) · Calculator · 2 marks
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The question, in short
A four-sided dice numbered 1 to 4 is thrown 50 times with given frequencies: 1 appears 14 times, 2 appears 15 times, 3 appears 9 times, 4 appears 12 times. Calculate the mean score.
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Solution · 2 marks
- 11 × 14 + 2 × 15 + 3 × 9 + 4 × 12 = 14 + 30 + 27 + 48 = 119
- 2Mean = 119 ÷ 50 = 2.38
Answer2.38
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