# AP BIOLOGY

## THE HUMAN IMMUNE SYSTEM

### AIDS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pie charts
 A a diagram in which the numerical values of variables are represented by the height or length of lines or rectangles of equal width. B a graph in which a circle is divided into sectors that each represent a portion of the whole.
Explanation:

Detailed explanation-1: -A pie chart, sometimes called a circle chart, is a way of summarizing a set of nominal data or displaying the different values of a given variable (e.g. percentage distribution). This type of chart is a circle divided into a series of segments. Each segment represents a particular category.

Detailed explanation-2: -A pie chart is a circular chart divided into wedge-like sectors, illustrating proportion. Each sector represents a proportionate part of the whole.

Detailed explanation-3: -A pie chart as the name suggest is in the shape of a pie, that is, it is a circle in which all the different parts that make up some angle at the center of the circle are called sectors. Thus, from our above definition, we can see that a pie chart is divided into sectors.

Detailed explanation-4: -A circle graph, also called a pie chart, is a chart in the shape of a disc divided into sectors whose areas are proportional to the quantities they represent. The whole disk represents the whole; that is, the sum of the sectors represents the whole or the total.

Detailed explanation-5: -That piece is called a section of the pie, or sector. A sector graph has sections that make up different total values of the whole graph. Just like the yummy piece of pie cut for you is only one section of the whole pie.

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