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Since Bill getting the job and Nina getting the job are not mutally exclusive, can we use addition rule?
P (Bill or Nina) = P(Bill) + P(Nina) - P(Bill and Nina) ? = 1/3 + 1/5 - (1/3 * 1/5) = 8/15 - 1/15 = 7/15 This is the wrong answer though!
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Basic Probability Puzzles #10
You are viewing a single comment's thread. Return to all comments →
Since Bill getting the job and Nina getting the job are not mutally exclusive, can we use addition rule?
P (Bill or Nina) = P(Bill) + P(Nina) - P(Bill and Nina) ? = 1/3 + 1/5 - (1/3 * 1/5) = 8/15 - 1/15 = 7/15 This is the wrong answer though!