CAIE S1 2020 November — Question 5

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2020
SessionNovember
TopicMeasures of Location and Spread
TypeConstruct back-to-back stem-and-leaf from raw data

5 The following table gives the weekly snowfall, in centimetres, for 11 weeks in 2018 at two ski resorts, Dados and Linva.
Dados68121510364228102216
Linva2111516032364010129
  1. Represent the information in a back-to-back stem-and-leaf diagram.
  2. Find the median and the interquartile range for the weekly snowfall in Dados.
  3. The median, lower quartile and upper quartile of the weekly snowfall for Linva are 12, 9 and 32 cm respectively. Use this information and your answers to part (b) to compare the central tendency and the spread of the weekly snowfall in Dados and Linva.