Graphs, charts and

tables

5

Contents:

A Statistical graphs [11.3]

B Graphs which compare data [11.3]

C Using technology to graph data [11.3]

Opening problem

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Amon and Maddie were practicing their golf drives on a driving

range. Amon hit 20 drives, which travelled the following distances

in metres:

152 183 194 172 160 148 177 159 192 188

165 174 181 191 188 165 180 174 147 191

Maddie suggested that Amon should have a try with her

driver. While using Maddie’s driver, Amon’s drives travelled the

following distances:

150 152 169 195 189 177 188 196 182 175

180 167 174 182 179 197 180 168 178 194

Things to think about:

1

2 How can we represent the data in a way that makes it easier to compare the data sets?

Just by looking at the data, is there a noticeable difference between the data sets?

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Y:\HAESE\IGCSE01\IG01_05\111IGCSE01_05.CDR Wednesday, 8 October 2008 4:31:28 PM PETER