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Asked Nov 29, 2019
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In a 2 x 2 contingency table, if we keep the marginals at their observed values, how many fo scores are free to vary?

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Introduction:

Consider 2 categories, A and B, which are present at 2 levels each, A1, A2, B1, and B2. Let fij be the number of observations for the ith level of A and jth level of B; i, j = 1, 2. Denote fAi and fBj be the marginal probabilities for the ith level of A and jth level ...

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Bі fi Marginal totals B2 fi2 A A2 fa2=f1+f п-JAi+ JAz -fB1f2 Marginal totals f fi f22 =fi2 +f2

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