APPENDIX V: Histograms
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Histograms (also called frequency distributions) show the frequency of different values in a set of data. They're often used to display data in conjunction with t-Tests or Anova and can be useful in determining whether data are distributed normally.

Making a histogram in MS Excel requires first using the Histogram option in Data Analysis. The trickiest part is choosing what range of values (called "Bins" in Excel) you want each bar in your graph to display.

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