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4.5 Statistical distributions (A-level only)

4.5 Statistical distributions (A-level only)

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Question 25

The mass of a certain variety of apple, in grams, is Normally distributed with mean 150 g and standard deviation 10 g.

Find the probability that the mass of a randomly chosen apple of this variety is as described in each of parts (a) to (c). Give each answer to 3 significant figures.

a.

More than 162.5 g

[1]
b.

Less than 137.5 g

[1]
c.

Between 137.5 g and 162.5 g

[1]
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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