EVERYDAY SCIENCE

Detailed explanation-1: -Pie charts can be used to show percentages of a whole, and represents percentages at a set point in time. Unlike bar graphs and line graphs, pie charts do not show changes over time.

Detailed explanation-2: -Reading Pie Charts To calculate the percentage each slice is worth, measure the angle of each slice and divide this by 360 then multiply it by 100 . To find the number of pieces of data each slice represents, multiply the percentage that each slice is worth by the total number of the data sets.

Detailed explanation-3: -Pie charts are used to represent percentages, though not every percentage you encounter is best visualized with a pie chart. Still, the basic use of a pie chart is when you want to visualize a percentage or parts of a whole.

Detailed explanation-4: -A pie chart is a graphical representation technique that displays data in a circular-shaped graph. It is a composite static chart that works best with few variables. Pie charts are often used to represent sample data-with data points belonging to a combination of different categories.