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2.4.1 Discrete distributions and the binomial

Question 13

A car park has 40 spaces. On a particular morning, the number of spaces occupied by diesel cars is modelled by the random variable $X$ , where $\sim B(40, 0.3)$ .

State two assumptions that are needed for this binomial model to be appropriate.

[2]

Find the mean of $X$ .

[1]

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 13

A car park has 40 spaces. On a particular morning, the number of spaces occupied by diesel cars is modelled by the random variable $X$ , where $\sim B(40, 0.3)$ .

State two assumptions that are needed for this binomial model to be appropriate.

[2]

Find the mean of $X$ .

[1]

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.