AP BIOLOGY

Detailed explanation-1: -Points. With points, we highlight particular values. Points must be plotted clearly & visibly-especially in case where points might overlap each other (similar values). Points can be of different shapes and forms, but usually we use circles, squares, crosses, or triangles.

Detailed explanation-2: -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-3: -Frequency tables, pie charts, and bar charts are the most appropriate graphical displays for categorical variables. Below are a frequency table, a pie chart, and a bar graph for data concerning Mental Health Admission numbers.

Detailed explanation-4: -Tell students that pie charts (or circle graphs) are used to represent data as portions (or segments) of a whole. Explain that just as they would see a pizza pie cut up into pieces, a pie chart is divided into different pieces of data. Each portion represents a percentage of the pie; all portions add up to 100%.