Algorithm AS 159 accepts a table shape (the number of rows and columns), and two vectors, the lists of row and column sums.
a random matrix generated by AS159 and its probability
Pearson's chi-square test of independence assesses whether paired observations on two variables, expressed in a contingency table, are independent of each other.
Fisher's exact test distribution is, as its name states, exact, and can therefore be used regardless of the sample characteristics.
the available distributions used for the test
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