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Scatter plot example

Scatter Plot with an Outlier Example

Most points in this example follow an upward study-hours pattern, while one observation sits far below the surrounding values. A scatter plot makes that unusual point visible without automatically deciding whether it is an error or a meaningful case.

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Study hours vs exam scoreOne observation sits far from the overall pattern204060801000246810Y · Exam scoreX · Study hours1, 522, 573, 634, 685, 746, 797, 398, 889, 94Source: 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.

Study hoursExam score
152
257
363
468
574
679
739
888
994

How to structure the data

  • 01Keep the original paired measurement until you have a reason to correct or exclude it.
  • 02Check data-entry and measurement context before labeling an unusual point as an error.
  • 03If you add a trend line, compare the fit with and without the unusual observation rather than deleting it automatically.

What this example shows

See how one observation can sit far from the main point pattern and deserve closer inspection.

What counts as an outlier in a scatter plot?

There is no single visual threshold that makes every isolated point an outlier. Context, measurement quality, model choice, and the surrounding pattern all matter.

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Make this scatter plot your own

Open the exact example in the matching maker, replace the sample data, then customize the layout, design, animation, and export format.

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Scatter Plot with an Outlier Example | Vizvero