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Box plot example

Left-Skewed Box Plot Example (Negative Skew)

This distribution stretches farther toward smaller values, creating a longer lower tail. The mean is pulled below the median, while the box and whiskers provide a compact view of the asymmetry.

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Left-skewed score distributionA longer lower tail pulls the mean below the median405060708090Median 74ScoresSource: Sample data

Example data

This is the data used by the live preview. Open the example in Vizvero to replace any cell, add series when the chart supports them, change chart settings, and export the result.

GroupScore
Scores47
Scores52
Scores58
Scores63
Scores67
Scores70
Scores72
Scores74
Scores75
Scores76
Scores77
Scores78
Scores79
Scores80
Scores81

How to structure the data

  • 01Use raw observations rather than precomputed quartiles so the same data can drive every statistic.
  • 02Read skew from the full pattern of median position, box halves, whiskers, and unusual observations rather than from one mark alone.
  • 03A box plot summarizes asymmetry but does not show peaks or detailed frequency shape; use a histogram when those features matter.

What this example shows

See a longer lower tail with the mean pulled below the median.

Left skewed vs negatively skewed

Left-skewed and negatively skewed describe a distribution with a longer tail toward smaller values. The mean is often below the median, although that relationship is not a definition by itself.

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Left-Skewed Box Plot Example (Negative Skew) | Vizvero