GCSE Statistics Time Series.

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Presentation transcript:

GCSE Statistics Time Series

points are joined with a dotted line A line graph is used to display data when the two variables are not related by an equation and it is uncertain what happens between the points. points are joined with a dotted line scales do not have to start from zero

A time series is a set of observations taken over a period of time A line graph can be used to show a time series. When plotting a time series. time is plotted on the horizontal (x) axis. if a question says quarterly it means every 3 months give comments on the graphs in context. ‘Sales of ice cream seem to be on the increase each year.’ The temperature reached a maximum at 1600

Yes that is all there is to it! Your Turn exercise 6A page 210 exercise 6B page 213 need help? pgarnett@alsson.com