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2.2.1 Single-variable data diagrams

Question 4

A variable $x\,$ was measured to the nearest whole number. The 50 observations are summarised in the table below.

$x$	5–8	9–13	14–20	21–24
Frequency	10	9	14	17

A histogram is drawn. On the histogram, the bar representing the class 9–13 has a width of 2 cm and a height of 2.7 cm.

Find the width and the height of the bar representing the class 14–20.

[3]

Markscheme

2.2.1 Single-variable data diagrams Questions

A Level
Maths
2.2.1 Single-variable data diagrams

8 exam-style questions on AQA A Level Maths 2.2.1 Single-variable data diagrams. Each one has a worked solution and a mark scheme showing where the marks go.

2.2.1 Single-variable data diagrams

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2.2.1 Single-variable data diagrams

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Question 4

A variable $x\,$ was measured to the nearest whole number. The 50 observations are summarised in the table below.

$x$	5–8	9–13	14–20	21–24
Frequency	10	9	14	17

A histogram is drawn. On the histogram, the bar representing the class 9–13 has a width of 2 cm and a height of 2.7 cm.

Find the width and the height of the bar representing the class 14–20.

[3]

Markscheme

2.2.1 Single-variable data diagrams Questions

A Level
Maths
2.2.1 Single-variable data diagrams

8 exam-style questions on AQA A Level Maths 2.2.1 Single-variable data diagrams. Each one has a worked solution and a mark scheme showing where the marks go.