Why is the probability of the intersection of two events subtracted in the sum of the probability of two events?
Added by Todd W.
Step 1
We want to find the probability of either A or B occurring, which is denoted as P(A ∪ B). According to the principle of inclusion-exclusion, we have: P(A ∪ B) = P(A) + P(B) - P(A ∩ B) Show more…
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