Scatter plots are graphs which are composed of points and use a Cartesian system. They represent the variable values for a set of data. Scatter plots are also known as scattergrams, scatter diagrams, scatter charts and so on.
Each point which makes up the scatter plot consists of one variable that makes up the value on the horizontal axis or x axis and the other variable that makes up the value on the vertical y axis. Scatter plots are commonly used and they require some amount of technical skill in understanding.
The first variable is plotted on the x axis and the second on the y axis. Thus, this graph is built on two variables making it flexible and adaptable to a wide range of data. Scatter graphs can be shaded and color coordinated in order to ensure that the information comes across clearly and in the correct manner.
They are also known as XY graphs and are used to determine cause and effect. The use of the double variable in the scatter graph lends to creating this particular use.
Best fit or trend lines demonstrate the ideal relationship between the two variables. They should leave the same number of unconnected dots on either side of the main line, and as many dots as possible should be joined.
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