Thursday, April 17, 2014

Scatter Plot

http://www.gardenersown.co.uk/education/lectures/r/graphs2.htm

Scatter plots are used to graph data obtained from an experimenter to show the correlation between  independent and dependent variables. The independent variable is the variable that the experimenter controls, in this case it is speed, and the dependent variable is the data collected at each speed tested. After it is plotted, we can either see a positive correlation, shown above, a negative correlation or no correlation. It is important to remember however that correlation does not prove causation.

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