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2.4 N: Statistical distributions

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Question 19

The length of a certain type of steel rod follows a normal distribution with a mean of 2.50 m and a standard deviation of 0.04 m.

Find the probability that the length of a steel rod is:

a.

More than 2.56 m

[1]
b.

Less than 2.44 m

[1]
c.

Between 2.44 m and 2.56 m

[1]
Markscheme

2.4 N: Statistical distributions Questions

  1. A Level
  2. /Maths
  3. /2.4 N: Statistical distributions

390 exam-style questions on AQA A Level Maths 2.4 N: Statistical distributions, covering 2.4.1 Discrete distributions and the binomial, 2.4.2 The Normal distribution (A-level only), and 2.4.3 Selecting an appropriate distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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