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19 Interpreting and discussing results

Here are the results for the football teams Manchester United, Key words
Chelsea and Liverpool in the English Premiership in 2011–12.

!e table shows how many games were won, drawn or lost. Make sure you learn and
understand these key words:
frequency polygon
Won Drawn Lost midpoint
scatter graph
Man U 28 5 5
correlation
Chelsea 18 10 10

Liverpool 14 10 14

Students were asked to use computer so"ware to draw charts of these results.

Here are some of the charts they drew.

Chelsea 80
60 Liverpool

Won 40 Chelsea
Drawn
20 Man U
Lost
0
Won Drawn Lost

100%
80% Lost
60%
Drawn Won
40%
20% Won Drawn
0% Lost
Man U Chelsea Liverpool

Which is the best chart?
Which chart is not very useful?

How could you improve the charts?
What chart would you draw?

In this unit you will draw and interpret more diagrams and graphs. You will also learn how to draw and
interpret scatter graphs and back-to-back stem-and-leaf diagrams.

19 Interpreting and discussing results 177