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4.2 Statistical distributions (A-level only)

4.2 Statistical distributions (A-level only)

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Question 46

Independent parcel masses are normally distributed with mean 2.2 kg and standard deviation 0.3 kg. A van carries 12 parcels.

a.

State the distribution of their total mass SSS.

[3]
b.

Find P(S>27)P(S>27)P(S>27).

[3]
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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