If events A and B are disjoint with P(A) = 0.25 and P(B) = 0.40, what is P(A ∪ B)?

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Multiple Choice

If events A and B are disjoint with P(A) = 0.25 and P(B) = 0.40, what is P(A ∪ B)?

Disjoint events cannot happen at the same time, so the probability of either one occurring is the sum of their probabilities. Here, P(A ∪ B) = P(A) + P(B) = 0.25 + 0.40 = 0.65. Since there is no overlap, you don’t subtract any overlap term (P(A ∩ B) = 0). In general, P(A ∪ B) = P(A) + P(B) − P(A ∩ B); the disjoint condition makes the intersection term zero, leaving just the sum.

If events A and B are disjoint with P(A) = 0.25 and P(B) = 0.40, what is P(A ∪ B)?

Enhance your understanding of Descriptive Statistics and Probability. Study with interactive questions and detailed explanations. Prepare effectively for your test!

If events A and B are disjoint with P(A) = 0.25 and P(B) = 0.40, what is P(A ∪ B)?

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