Graphing

A bar graph is used to show relationships between groups. The two items being compared do not need to affect each other. It's a fast way to show big differences.
 * A bar graph:**


 * A line graph:**A line graph is used to show continuing data; how one thing is affected by another. It's clear to see how things are going by the rises and falls a line graph shows. This kind of graph is ne


 * A circle (pie) graph:** A circle graph is used to show how a part of something relates to the whole. This kind of graph is needed to show percentages effectivelyeded to show the effect of an independent variable on a dependent variable.

A stem-and-leaf plot looks something like a bar chart. Each number in the data is broken down int a stem and a leaf. The stem of the number includes all, but the last digit
 * A stem and leaf graph:**