How do I use a pie chart to understand data?

A pie chart is a great visual tool for understanding data distribution. In a pie chart, each category is represented by a slice of the "pie," with the size of each slice corresponding to the proportion of that category in the whole data set. To read a pie chart, simply look at the size of each slice and compare it to the whole pie. This helps in understanding the relative importance of each category and identifying the major contributors. In mathematical terms, the size of each pie slice can be represented by the formula: [ \text{Pie Slice Size} = \frac{\text{Category Frequency}}{\text{Total Frequency}} \times 360^\circ ] Pie charts are a valuable tool for analyzing and interpreting data in a visual and intuitive manner.