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2.4.1 Discrete distributions and the binomial

Question 5

The probability that a component is faulty is 0.04, independently of every other component. A batch consists of 25 components.

Find the probability that a batch contains exactly 2 faulty components.

[2]

Find the probability that a batch contains more than 2 faulty components.

[2]

Two batches are taken independently. Find the probability that exactly one of the two batches contains more than 2 faulty components.

[3]

Markscheme

2.4.1 Discrete distributions and the binomial Questions

A Level
Maths
2.4.1 Discrete distributions and the binomial

39 exam-style questions on AQA A Level Maths 2.4.1 Discrete distributions and the binomial. Each one has a worked solution and a mark scheme showing where the marks go.

2.4.1 Discrete distributions and the binomial

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2.4.1 Discrete distributions and the binomial

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Question 5

The probability that a component is faulty is 0.04, independently of every other component. A batch consists of 25 components.

Find the probability that a batch contains exactly 2 faulty components.

[2]

Find the probability that a batch contains more than 2 faulty components.

[2]

Two batches are taken independently. Find the probability that exactly one of the two batches contains more than 2 faulty components.

[3]

Markscheme

2.4.1 Discrete distributions and the binomial Questions

A Level
Maths
2.4.1 Discrete distributions and the binomial

39 exam-style questions on AQA A Level Maths 2.4.1 Discrete distributions and the binomial. Each one has a worked solution and a mark scheme showing where the marks go.