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Dot Plots

A Dot plot also (called Dot chart) is a graphical display of data points which are shown on a simple scale. Each of the dot represents number of observations from a set of data. Dot plots are used for continuous, quantitative, univariate data. They are suitable for limited and small data. Dot plots have a advantage that is conservation of numerical information.

For example: Here is a table given which shows the number of hours per week the same group of 25 students reported spending on homework.

Hours spent on doing homework012345678910
Number of students15434230210
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