Math for Non-Math Majors

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Histograms

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Math for Non-Math Majors

Definition

A histogram is a graphical representation of data using bars of different heights. It shows the frequency distribution of a dataset and is used to visualize the shape and spread of continuous data.

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5 Must Know Facts For Your Next Test

  1. Histograms display data in bins or intervals, with each bin representing a range of values.
  2. The height of each bar in a histogram indicates the frequency or count of data points within that bin.
  3. Histograms are useful for identifying patterns such as skewness, modality, and outliers in a dataset.
  4. The x-axis on a histogram represents the intervals (bins) while the y-axis represents the frequency (count) of occurrences.
  5. Unlike bar charts, histograms do not have gaps between the bars because they represent continuous data.

Review Questions

  • What does each bar's height in a histogram represent?
  • How are bins used in creating a histogram?
  • What type of data is best visualized using a histogram?
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