Statistics Calculator
Mean, median, mode, range, min, max and count at once.
How it works
Mode = most frequent value; Range = max − min
Central tendency and spread at a glance: mean (average), median (middle), mode (most frequent) and range (span).
FAQ
What if no value repeats?
If no value repeats there is no mode; it shows "—".
Worked example
Data 2, 4, 4, 5, 9:
- Mean 4.8, median 4, mode 4
- Range 7, sample SD ≈ 2.59
The mean is pulled up by 9; median and mode better represent the typical value.
Notes and limitations
Check the shape first: mean for symmetric data, median for skewed. Reporting a mean without dispersion hides how spread out the data is.