used to demonstrate change in temperature only used to demonstrate change that is continuous used to demonstrate change that is not continuous used to describe how part of the data relates to all of the data
I gave my students this multiple choice question: Which most accurately describes a circle (pie) graph?

Only one answer is correct among these 4 choices:
- used to demonstrate change in temperature only
- used to demonstrate change that is continuous
- used to demonstrate change that is not continuous
- used to describe how part of the data relates to all of the data

Could you tell me which one is correct?

used to describe how part of the data relates to all of the data