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Representations of Data

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Question 1

The partially completed box plot shows the distribution of average temperatures at Heathrow in 2015.

A partially completed horizontal box plot on a Temperature (°C) axis from 7 to 29, showing a box and median line with no whiskers or outliers.

An outlier is defined as a value more than 1.5×IQR1.5 \times \text{IQR}1.5×IQR below Q1 Q_1\,Q1​ or more than 1.5×IQR1.5 \times \text{IQR}1.5×IQR above Q3Q_3Q3​. The lowest temperature was 8.4∘C8.4^\circ\text{C}8.4∘C and the highest two temperatures were 22.2∘C22.2^\circ\text{C}22.2∘C and 27.8∘C27.8^\circ\text{C}27.8∘C.

Complete the box plot showing clearly any outliers.

[4]
Markscheme

Representations of Data Questions

  1. A Level
  2. /Maths
  3. /Representations of Data

160 exam-style questions on Edexcel A Level Maths Representations of Data, covering 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data. Each one has a worked solution and a mark scheme showing where the marks go.

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