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2.7 Statistical distributions

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Question 14

Each component is defective with probability 0.05, independently of the others. Twelve components are inspected and X X\,X is the number that are defective.

a.

Justify a binomial model for XXX.

[2]
b.

Find P(X≥1)P(X\geq1)P(X≥1).

[2]
c.

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

[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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