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2.4.6 Probabilities using the normal distribution (A-level only)

2.4.6 Probabilities using the normal distribution (A-level only)

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Question 20

Given that X∼N(10,2.25)X \sim N(10, 2.25)X∼N(10,2.25) find the following probabilities:

a.

P(X>11.8)P(X > 11.8)P(X>11.8)

[1]
b.

P(X<7.45)P(X < 7.45)P(X<7.45)

[1]
c.

P(9.1<X<11.2)P(9.1 < X < 11.2)P(9.1<X<11.2)

[1]
Markscheme

2.4.6 Probabilities using the normal distribution (A-level only) Questions

  1. A Level
  2. /Maths
  3. /2.4.6 Probabilities using the normal distribution (A-level only)

147 exam-style questions on OCR A Level Maths 2.4.6 Probabilities using the normal distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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