Exercise . 5 1. The data below gives the urbanisation rates (%) in 23 countries. 54 99 22 20 31 3 22 9 25 3 56 12 16 9 29 6 28 100 17 9 35 27 12 a Construct an ordered stem plot. b What advantage does a stem plot have over a histogram? For each of the following stem plots (A, B and C): a name its shape and note outliers (if any) c determine the spread of the distribution b locate the centre of the distribution d write down the values of outliers (if any) 2. Stem plot A Stem plot B Stem plot C 0 01 1267 79 0 1 3 1 2 2 3 5 5 5 5 6 1 3 69 2 0147 2 0 0 1 568 8 2 2 2 3 2 2 2 459 99 3 2 1 24 46 0 2 4 5 2 5 2 3 5 1 1 358 8 6 6 2 6 0 0 4 4 47 789FUND. MATHS - UNIT 2 STUDY AREA 1- UNIVARIATE STATISTICS University participation rates (%) in 21 countries are listed below: 3 w 7 8 12 13 . 15. 17 20 21 22 25 26 26 26 27 30 36 37 55 a Use a calculator to construct a box plot with outliers for this data. b Use the box plot to write down a five-number summary for this data. Identify any outliers and their values. 4 The reaction times (in milliseconds) of 18 people are listed below: 38 36 35 35 43 46 42 64 40 48 35 34 40 44 30 25 39 31 a Use a calculator to construct a box plot with outliers for this data. b Use the box plot to write down a five-number summary for this data. Identify any outliers and their values