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A frequency distribution graph can be either a histogram, a bar graph, or a polygon. Define...

A frequency distribution graph can be either a histogram, a bar graph, or a polygon. Define each of these graphs and identify the circumstances where each is used.

Math   Statistics-And-Probability   
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A histogram represents the frequency distribution of continuous variables. Conversely, a bar graph is a diagrammatic comparison of discrete variables.Histogram presents numerical data whereas bar graph shows categorical data. The histogram is drawn in such a way that there is no gap between the bars.

Frequency Polygons:

A frequency polygon is almost identical to a histogram, which is used to compare sets of data or to display a cumulative frequency distribution. It uses a line graph to represent quantitative data.

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