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Q.

Consider 5 independent Bernouli’s trails each with probability of success p. If the probability of at least one failure is greater than or equal to 3132, then p lies in the interval

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An Intiative by Sri Chaitanya

a

34,1112

b

0,12

c

112,1

d

12,34

answer is A.

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Detailed Solution

Patleast one failure=1-PNo failures

Patleast one failure=1−p5≥3132;

p5≤1-3132⇒p5≤132 ∴p≤12

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