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Histogram Analysis

  • Histogram: Graph display of tabulated frequencies, shown as bars
  • It shows what proportion of cases fall into each of several categories
  • Differs from a bar chart in that it is the area of the bar that denotes the value, not the height as in bar charts, a crucial distinction when the categories are not of uniform width
  • The categories are usually specified as non-overlapping intervals of some variable. The categories (bars) must be adjacent

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