Question: From the following contingency table: B B ' A 10 20 A '20 40 What is the probability of to. event A? (3 pts) b.

From the following contingency table:

B B ' A 10 20 A '20 40 What is the probability of to. event A? (3 pts) b. event A '? (3 pts) c. event A and B? (3 pts) d. event A or B? (3 pts)

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