Question

lesson 12: basic charts and graphs
circle graphs
which of the following is the main use of a circle graph?
○ a. shows the frequency of data points
○ b. shows the relative size of data categories
○ c. demonstrates how data changes over time
○ d. provides exact numerical data

Explanation:

A circle graph (pie chart) is used to show the relative proportion (or relative size) of different data categories within a whole. Option a is for histograms or frequency tables, option c is for line graphs, and option d is not the main use of a circle graph. So the correct option is the one about showing the relative size of data categories (assuming the second option's text is about relative size, likely a typo in the original but contextually this is the purpose of a circle graph).

Answer:

b. Shows the relative size of data categories (assuming the second option's intended meaning is this, as circle graphs display proportions of categories relative to the whole)