Fisher's Exact Test
Calculate Fisher's Exact Test instantly with the exact formula and a worked example.
Fisher's Exact Test
a — group 1, outcome present
b — group 1, outcome absent
c — group 2, outcome present
d — group 2, outcome absent
p-value
0.485714
Assessment
Not significant (p ≥ 0.05)
One-sided p (less)
0.98571
One-sided p (greater)
0.24286
Odds ratio
9
More about: Fisher's Exact Test
What it calculates
The “Fisher's Exact Test” calculator computes p-value from 4 parameters: a — group 1, outcome present, b — group 1, outcome absent, c — group 2, outcome present, d — group 2, outcome absent.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters a — group 1, outcome present = 3, b — group 1, outcome absent = 1, c — group 2, outcome present = 1, d — group 2, outcome absent = 3 the result is 0.4857.
How to use
- Enter a — group 1, outcome present, b — group 1, outcome absent, c — group 2, outcome present and d — group 2, outcome absent — each field above is adjustable with a slider.
- p-value is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Fisher's Exact Test calculated?
The Fisher's Exact Test calculator computes p-value from a — group 1, outcome present, b — group 1, outcome absent, c — group 2, outcome present, d — group 2, outcome absent. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Fisher's Exact Test calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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