Charts / Glossary
Median
A chart word, with the charts that use it.
Definition
The median is the middle value: half the data sits above it, half below. Unlike the average, a few extreme values don't pull it.
Updated Nov 2, 2026
- 01The median lineThe line inside each box.
- 02The middle halfThe box around it holds half the values.
Where you see it
043 · Box plotDistribution · AI data
Common mistakes
Average where the median belongs
One slow request lifts the average. For latency, use the median and P95.
A median with no spread
Show the box or the P95 too, so readers see how wide it is.
Questions
Median or average?
The median for skewed data such as latency or prices; the average when values are even.
Is P50 the median?
Yes. P50 is another name for the median.
Related terms
- Quartile
- Distribution
- Outlier
- Whisker
Every chart word, A to Z.
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