0580/23 May/Jun 2021, Question 26: Conditional Probability
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 3 marks
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The question, in short
Using morning probability 0.7 and bread probabilities 0.95 in the morning and 0.6 later, calculate the overall probability that bread is available on any day.
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Solution · 3 marks
- 1Morning and bread: 0.7 × 0.95 = 0.665
- 2Later and bread: 0.3 × 0.6 = 0.18
- 3P(bread) = 0.665 + 0.18 = 0.845
Answer0.845
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