Percentile
Percentile: use observations, percentile. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
Sorted index = (n−1)p/100, with linear interpolation.
Variables & units
- Observations
- comma separated
- Percentile
- % · minimum 0, maximum 100
Worked example
The 75th percentile of 1,2,3,4,5 is 4.
Assumptions
Uses the inclusive linear interpolation convention; other software may use different percentile definitions.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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