Histogram

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Histograms are bar graphs are created in much the same way scatter plots and line graphs are. Histograms are a specialized type of bar graph used to summarize groups of data.

Its a summery graph showing a count of the data points falling in various ranges. The effect is a rough approximation of the frequency distribution of the data.

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Histogram

  1. 1. Age Grp Girls Boys 5-7 yrs -10% 8% 7-9 yrs -23% 12% 9-11 yrs -32% 20% 11-13 yrs -18% 14% 13-15 yrs -14% 25% 15-17 yrs -2% 16% >18 yrs -1% 5% Total -100% 100% Girls Boys >18 yrs 15-17 yrs 13-15 yrs 11-13 yrs 9-11 yrs 7-9 yrs 5-7 yrs 40% 30% 20% 10% 0% 10% 20% 30%

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