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2.2 Data Presentation and Interpretation

2.2 Data Presentation and Interpretation

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Question 33

A distribution has lower quartile 20, median 24 and upper quartile 32. Its minimum is 3 and maximum is 55.

a.

Determine which extremes are outliers under the 1.5×IQR1.5\times\mathrm{IQR}1.5×IQR rule.

[4]
b.

Explain how the extremes should be displayed on a box plot.

[2]
Markscheme

2.2 Data Presentation and Interpretation Questions

  1. A Level
  2. /Maths
  3. /2.2 Data Presentation and Interpretation

121 exam-style questions on OCR A Level Maths 2.2 Data Presentation and Interpretation, covering 2.2.1 Tables and diagrams for single variable data, 2.2.2 Area in a histogram, 2.2.3 Scatter diagrams and regression lines, 2.2.4 Informal interpretation of correlation, 2.2.5 Correlation and causation, 2.2.6 Measures of average and spread, 2.2.7 Calculations of mean and standard deviation, 2.2.8 Outliers, 2.2.9 Selecting or critiquing data presentation, and 2.2.10 Cleaning data. Each one has a worked solution and a mark scheme showing where the marks go.

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