Histogram Calculator
Data (space/comma separated)
Number of Bins
✓Histogram (17 values, 5 bins)
[2.00, 5.80) — 4
[5.80, 9.60) — 4
[9.60, 13.40) — 3
[13.40, 17.20) — 3
[17.20, 21.00) — 3
A histogram displays the frequency distribution of a dataset by dividing the range into equal-width bins and counting how many values fall in each bin. It reveals the shape, spread, and central tendency of data.
- 1Choose number of bins (Sturges: 1+log₂n)
- 2Bin width = (max−min)/bins
- 3Count values in each bin
- 4Bar height = frequency (or relative frequency)
20 test scores, 5 bins=Each bin spans 10 points; reveals normal-like distribution
| n (data points) | Suggested bins | Method |
|---|---|---|
| 5–10 | 3–5 | Square root |
| 11–50 | 5–8 | Square root |
| 51–200 | 7–12 | Sturges |
| 201–1000 | 10–17 | Sturges |
| 1000+ | 15–20+ | Rice rule |
References
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