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2.7 Statistical distributions

2.7 Statistical distributions

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Question 4

Each throw of a ball lands in a bucket with probability 0.3, independently of other throws. Let X X\,X be the number of successes in five throws.

a.

State the distribution of X X\,X and one assumption of the model.

[2]
b.

Find P(X=2)P(X=2)P(X=2).

[2]
c.

Find the probability that the first success occurs on throw 5.

[2]
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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