Relationships · Optional extension
Fisher’s Exact Test
What evidence can a small, sparse 2×2 table provide?
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The big picture: Fisher's Exact Test
What evidence can a small, sparse 2×2 table provide?
Why a policy analyst should care
Sparse tables make large-sample approximations unreliable; exact reasoning shows what evidence remains possible when only a few configurations could have occurred.
Follow the idea from the opening question to a practical decision. These are the conceptual moves this module will develop:
1 Question What if the table is sparse?
2 Explore Reallocate fixed margins
3 Formalize Exact evidence under fixed margins
4 Transfer A rare survey outcome
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