GCE Mathematics 2022 Objective — Question 43
Question 43 of 50 from the General Certificate of Education (GCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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A local community has two newspapers: the Morning Times and the Evening Dispatch. The Morning Times is read by 45% of households and the Evening Dispatch by 60%. If 20% of the households read both papers, find the probability that a particular household reads at least one paper.
- A. 0.45
- B. 0.65
- C. 0.85Correct
- D. 0.95
Explanation
P(at least one) = P(M)+P(E)-P(both) = 45%+60%-20% = 85% = 0.85.
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