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4.5 Statistical distributions (A-level only)

4.5 Statistical distributions (A-level only)

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Question 172

The random variable Y Y\,Y is Normally distributed with standard deviation 2.8, and P(Y<26)=0.3P(Y < 26) = 0.3P(Y<26)=0.3.

Find the mean of YYY. Give your answer to 3 significant figures.

[4]
Markscheme

4.5 Statistical distributions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.5 Statistical distributions (A-level only)

284 exam-style questions on CCEA A Level Maths 4.5 Statistical distributions (A-level only), covering 4.5.1 Statistical distributions (A-level only) and 4.5.2 Statistical distributions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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