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2.4.12 Calculate probabilities from a Normal distribution (A-level only)

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Question 22

The time, T T\,T minutes, taken to commute to work is normally distributed with a standard deviation of 6.4 minutes. Given that P(T<45)=0.7P(T < 45) = 0.7P(T<45)=0.7.

Find the mean commute time.

[4]
Markscheme

2.4.12 Calculate probabilities from a Normal distribution (A-level only) Questions

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  3. /2.4.12 Calculate probabilities from a Normal distribution (A-level only)

147 exam-style questions on OCR (MEI) A Level Maths 2.4.12 Calculate probabilities from a Normal distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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