Arithmetic Ability
 Probability

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Q.

Consider 5 independent Bernoulli’s trials each with probability of success p. If the probability of at least one failure is greater than or equal to 31/32 , then p lies in the interval ?

View Answer

Correct choice: C

Explanation:

Probability of atleast one failure = 1 - no failure > 31/32 = 1 - P5 > 31/32 = P5<1/32 = p < 1/2 Also p > 0 Hence p lies in [0,1/2].
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