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2.7 Statistical distributions

2.7 Statistical distributions

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Question 5

A call centre models the number of answered calls among the next 20 calls as Bin(20,0.75)\mathrm{Bin}(20,0.75)Bin(20,0.75). During a system fault, calls arriving close together are often all missed.

a.

State two binomial assumptions threatened by the fault.

[2]
b.

Explain the likely consequence for the model.

[2]
c.

Suggest one way to assess whether the model remains suitable.

[1]
Markscheme

2.7 Statistical distributions Questions

  1. A Level
  2. /Maths
  3. /2.7 Statistical distributions

39 exam-style questions on CCEA A Level Maths 2.7 Statistical distributions, covering 2.7.1 Statistical distributions and 2.7.2 Statistical distributions. Each one has a worked solution and a mark scheme showing where the marks go.

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