Question 8
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.
2.2 L: Data presentation and interpretation Questions
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.