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1. (4.3) Consider the following contingency table: B B' A 10 20 A' 20 40 What is the probability of event a. A? b. B'?

1. (4.3) Consider the following contingency table: B B' A 10 20 A' 20 40 What is the probability of event a. A? b. B'? C. A and B? d. A or B? e. AB? f. A|B'? g. A'B? h. Are event A and B independent

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