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Histogram example

Bell-Shaped Histogram Example & Normal Distribution

This sample is concentrated around the middle and tapers toward both sides, creating a roughly symmetric bell shape. A theoretical normal distribution is bell-shaped and symmetric, although a visual histogram alone is not a statistical normality test.

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Fill-weight measurementsBell-shaped sample centered around the mid-50s0510404550556065701359411Source: 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.

Fill weight (g)
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How to structure the data

  • 01Use enough observations around the center and both tails to make the overall shape visible.
  • 02Try Auto bins first, then switch to Count to see whether the bell shape persists at nearby settings.
  • 03Do not claim normality from appearance alone; use statistical checks when normality is analytically important.

What this example shows

Use a roughly symmetric bell-shaped sample to inspect a center-heavy distribution with lighter tails.

Bell shaped, symmetric, and normal

A normal distribution is symmetric and bell-shaped. A histogram can look approximately bell-shaped or symmetric without proving that the underlying data follows a normal distribution.

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Bell-Shaped Histogram Example & Normal Distribution | Vizvero