CAIE S1 2015 November — Question 6

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2015
SessionNovember
TopicData representation
TypeDraw histogram then perform calculations

6 The heights to the nearest metre of 134 office buildings in a certain city are summarised in the table below.
Height (m)\(21 - 40\)\(41 - 45\)\(46 - 50\)\(51 - 60\)\(61 - 80\)
Frequency1815215228
  1. Draw a histogram on graph paper to illustrate the data.
  2. Calculate estimates of the mean and standard deviation of these heights.