Two independent events have probabilities and . What is the probability that both and happen?
Answer and explanation
Correct answer: D. 0.2
- Step 1: For independent events multiply: .
- Step 2: .
Answer
0.2.
Why not the others: 0.9: This adds the probabilities instead of multiplying. 0.7: This is the probability that at least one of and happens, . 0.1: This subtracts the probabilities.
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