Line Graphs and Scatter Plots

This website gives excellent examples of how to create line graphs and scatter plots.

"Line graphs provide an excellent way to map independent and dependent variables that are both quantitative. When both variables are quantitative, the line segment that connects two points on the graph expresses a slope, which can be interpreted visually relative to the slope of other lines or expressed as a precise mathematical formula.

Scatter plots are similar to line graphs in that they start with mapping quantitative data points. The difference is that with a scatter plot, the decision is made that the individual points should not be connected directly together with a line but, instead express a trend. This trend can be seen directly through the distribution of points or with the addition of a regression line. A statistical tool used to mathematically express a trend in the data." (Wallace, 2005)

Source

Wallace, R. (2005, May 16). Line graphs and scatter plots. Retrieved from http://www.ncsu.edu/labwrite/res/gh/gh-linegraph.html

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