Fisher Exact Test for 2×2 Tables
Calculate two-sided, lower-tail and upper-tail Fisher exact p-values for a 2×2 table with fixed margins.
Fisher Exact Test for 2×2 Tables User manual
- Fill in the parameters or select the file according to the form, and check the unit and format first.
- Small-sample accurate tests are performed on the frequency tables 6, 2 and 1 and 4.
- Click the processing button to view the results, you can copy or download and save.
Calculation method and processing rules
Enumerate hypergeometric probabilities with fixed margins. The two-sided p-value sums probabilities of all tables at least as improbable as the observed table.
scope of use
The total frequency does not exceed 20000; the two sides are not simple one-sided multiplication, precisely refers to the distribution of enumeration rather than infinite precision, and does not automatically explain business or medical significance.
Will the input content be saved on the server?
This tool handles input in the browser, and does not upload files or form content. Typing practice scores are only saved in the native browser.
Why may the result be different from other tools?
The total frequency does not exceed 20000; the two sides are not simple one-sided multiplication, precisely refers to the distribution of enumeration rather than infinite precision, and does not automatically explain business or medical significance. Please compare the input unit, rounding method, applicable rules and data version first.