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2.2 Data presentation and interpretation

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Question 25

The times t t\,t minutes taken by 60 runners are grouped below.

t20≤t<2525≤t<3030≤t<4040≤t<55frequency8152215\begin{array}{c|cccc}t&20\leq t<25&25\leq t<30&30\leq t<40&40\leq t<55\\\hline\text{frequency}&8&15&22&15\end{array}tfrequency​20≤t<258​25≤t<3015​30≤t<4022​40≤t<5515​​

a.

Calculate the frequency density for each class.

[4]
b.

State the width and height of the tallest bar in the corresponding histogram.

[2]
Markscheme

2.2 Data presentation and interpretation Questions

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

105 exam-style questions on WJEC A Level Maths 2.2 Data presentation and interpretation, covering 2.2.1 Data presentation and interpretation, 2.2.2 Data presentation and interpretation, 2.2.3 Data presentation and interpretation, 2.2.4 Data presentation and interpretation, 2.2.5 Data presentation and interpretation, 2.2.6 Data presentation and interpretation, 2.2.7 Data presentation and interpretation, 2.2.8 Data presentation and interpretation, and 2.2 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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