Three independent events, A_1, A_2 and A_3 occur with probabilities P(A_i)= 1 1+i , i=1, 2, 3. What is the probability that at least one of the three events occurs?

NDA 2016 Mathematics question

Three independent events, , and occur with probabilities , . What is the probability that at least one of the three events occurs?

Answer: (C)

, , . $P(none) =

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Question ID VK-028565