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2.4 Statistical distributions

2.4 Statistical distributions

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Question 22

Calls arrive at a help desk at a mean rate of 4.8 per hour. Use a Poisson model.

a.

State the parameter for a 30-minute interval.

[1]
b.

Find the probability of at least two calls in a 30-minute interval.

[3]
Markscheme

2.4 Statistical distributions Questions

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

47 exam-style questions on WJEC A Level Maths 2.4 Statistical distributions, covering 2.4.1 Statistical distributions, 2.4.2 Statistical distributions, and 2.4.3 Statistical distributions. Each one has a worked solution and a mark scheme showing where the marks go.

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