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2.2 L: Data presentation and interpretation

2.2 L: Data presentation and interpretation

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Question 7
86%

A variable y y\,y was measured to the nearest whole number. 40 observations are given in the table below.

yyy10 – 1920 – 2425 – 2829 – 30
Frequency137155

A histogram was drawn and the bar representing the 10 – 19 class has a width of 2.5 cm and a height of 2.6 cm.

a.

Find the width and height of the bar representing the 20 – 24 class.

[3]
b.

Find the width and height of the bar representing the 25 – 28 class.

[3]
Markscheme

2.2 L: Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.2 L: Data presentation and interpretation

244 exam-style questions on AQA A Level Maths 2.2 L: Data presentation and interpretation, covering 2.2.1 Single-variable data diagrams, 2.2.2 Scatter diagrams and correlation, 2.2.3 Central tendency, variation and standard deviation, 2.2.4 Outliers and cleaning data, and 2.2 L: Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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