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4.2.2 Statistical distributions (A-level only)

4.2.2 Statistical distributions (A-level only)

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Question 1
84%

Given that X∼N(20,25)X \sim N(20, 25)X∼N(20,25) find the following probabilities

a.

P(X>25)P(X > 25)P(X>25)

[1]
b.

P(X<14.8)P(X < 14.8)P(X<14.8)

[1]
c.

P(13<X<19)P(13 < X < 19)P(13<X<19)

[1]
Markscheme

4.2.2 Statistical distributions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.2.2 Statistical distributions (A-level only)

292 exam-style questions on WJEC A Level Maths 4.2.2 Statistical distributions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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