Question: (a) Prove that the Ï coefficient is equal to 1 if and only if f11 = f1+ = f+1. (b) Show that if A and

(a) Prove that the Ï• coefficient is equal to 1 if and only if f11 = f1+ = f+1.
(b) Show that if A and B are independent, then P(A,B) Ã— P(A, ) = P(A,) Ã— P(, B).
(c) Show that Yule's Q and Y coefficients

are normalized versions of the odds ratio.
(d) Write a simplified expression for the value of each measure shown in Tables 6.11 and 6.12 when the variables are statistically independent.

0 01 f11 foo fiofon VJ11J00V10J01 VJ11J00T

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a Instead of proving f 11 f 1 f 1 we will show that PAB PA PB where PAB f 11 N PA f 1 N and PB f 1 N ... View full answer

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