Let's move to the worksheet with the appropriate data.
Today, we will be using a pie graph to show the different participants who took our computer workshops over a period of six months. For example, the pie chart below shows that election poll results could be plotted on a pie chart, with each candidate's percentage of the vote visible as a "slice" of the pie: Pie charts tend to be the most useful when there are a small number of data points since too many data points will make a pie chart difficult to interpret.
This means that a pie chart can only use one data series, and that no value can be a negative number. Pie charts show the relative proportion of any part to the whole.
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