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In Example 99, the probability that `X ge 3` equals

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In Example 99, the probability that X≥3 equals A. 125 216 B. 25 36 C. 5 36 D. 25 216 Select the correct answer from above options

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Correct Answer - B Required probability = P ( X ≥ 3 ) = = 1 − P ( X < 3 ) = = 1 − P ( X ≤ 2 ) = = 1 − ( 1 6 + 5 6 × 1 6 ) = 25 36 = ALITER Required probability = P ( X ≥ 3 ) = =Probability of not getting six in first two trials and getting any number in subsequent trials = 5 6 × 5 6 × 1 = 25 36 =

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