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4.2 Statistical distributions (A-level only)

4.2 Statistical distributions (A-level only)

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Question 9

The distribution of the weights of coffee in a jar is normally distributed with a mean of 200 g and a standard deviation of 4.2 g.

Find the probability that the weight of the coffee is:

a.

More than 205 g

[1]
b.

Less than 195 g

[1]
c.

Between 195 g and 205 g

[1]
Markscheme

4.2 Statistical distributions (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4.2 Statistical distributions (A-level only)

328 exam-style questions on WJEC A Level Maths 4.2 Statistical distributions (A-level only), covering 4.2.1 Statistical distributions (A-level only), 4.2.2 Statistical distributions (A-level only), and 4.2.3 Statistical distributions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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