The partially completed box plot shows the distribution of average temperatures at Heathrow in 2015.
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∘C8^\circ\text{C}8∘C and the highest two temperatures were 23∘C23^\circ\text{C}23∘C and 28.7∘C28.7^\circ\text{C}28.7∘C.
Complete the box plot showing clearly any outliers.
Practise Edexcel A Level Maths Representations of Data with exam-style questions for A Level Maths. 10 questions covering 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
