Trend graphs

Representing data


Understand how a frequency polygon/time series graph represents frequency. Understand that the graph is a type of frequency diagram. Draw and interpret frequency polygons based on time (i.e. time series graphs). Understand that the plotted points, when joined, give a trend over time. Know when it is and is not appropriate to interpolate between the plotted points. Know the term frequency polygon. Use frequency polygons to progress an enquiry
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