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Line 2: − − [[Image:Obama total approval august 7 2009.jpg|thumb|center|300px|A graph representing the decline in president Obama's approval rating]]
remove a copyrighted image; to those who can upload images, please feel free to upload a new chart for illustration in this article
In statistics, graphs are a way to display data. Pie charts and bar charts are two common types of graphs used to help readers visually understand the content of a data set.
In statistics, graphs are a way to display data. Pie charts and bar charts are two common types of graphs used to help readers visually understand the content of a data set.
In mathematics, and especially in [[topology]], a graph is an abstract object consisting of a number of points ("vertices") and lines ("edges") connecting those points, and is used to study networks and similar objects. For example, one could create a graph to represent human friendships: this graph has one point for each person, and an edge between every two people who are friends. According to the theory of six degrees of separation, any two points on this graph are connected by a path that goes along at most six edges!
In mathematics, and especially in [[topology]], a graph is an abstract object consisting of a number of points ("vertices") and lines ("edges") connecting those points, and is used to study networks and similar objects. For example, one could create a graph to represent human friendships: this graph has one point for each person, and an edge between every two people who are friends. According to the theory of six degrees of separation, any two points on this graph are connected by a path that goes along at most six edges!