Histogram

graphical representation of the bucketed distribution of numerical data

A histogram is a concept from statistics. It is a graphical display that tells us about the distribution of the samples involved. They are commonly a picture made from a table with many categories. The table tells how many samples there are in each category.

Example of a histogram of 100 normally distributed random values

The word histogram is derived from histos and gramma in Greek. Histos means web or mast. Gramma means drawing, record or writing. A histogram of something is therefore, etymologically speaking, a drawing of the web of this something.

A histogram is a graphical representation of the distribution of numerical data. It is a type of bar chart that shows the frequency or number of observations within different numerical ranges, called bins. The bins are usually specified as consecutive, non-overlapping intervals of a variable. The histogram provides a visual representation of the distribution of the data, showing the number of observations that fall within each bin.[1]

Similar ideas

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The histogram is one of the seven basic tools of quality control, which also include the Pareto chart, check sheet, control chart, cause-and-effect diagram, flowchart, and scatter diagram.

A population pyramid is two histograms.[2]

A generalization of the histogram is kernel smoothing techniques. This will construct a smooth probability density function from the supplied data.

References

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  1. "Histogram maker". Archived from the original on 2023-01-27. Retrieved 2023-02-07.
  2. Forbes, Sharleen; Harraway, John. "Population pyramids". Graph it in Excel. Retrieved 2020-06-10.