Mathematics 9709 · AS & A Level · Representation of data
Representation of data — practice question
The table below shows the weekly snowfall, measured in centimetres, for $11$ weeks in $2018$ at the two ski resorts, Dados and Linva.
(a)[4]
Display the information in a back-to-back stem-and-leaf diagram.
(b)[3]
Find the median and the interquartile range for the weekly snowfall in Dados.
(c)[2]
The median, lower quartile and upper quartile of the weekly snowfall for Linva are $12$, $9$ and $32$ cm respectively. Use this information together with your answers to part (b) to compare the central tendency and the spread of the weekly snowfall in Dados and Linva.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate stem-and-leaf layout with the stems placed correctly” …