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In a binomial distribution, the probability of success is twice as that of failure. Then out of 4 trials, the probability of no

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In a binomial distribution, the probability of success is twice as that of failure. Then out of 4 trials, the probability of no success is _______

(a) 16/81

(b) 1/16

(c) 2/27

(d) 1/81

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(d) 1/81

p = 2q ⇒ p + q = 1 ⇒ q = 1/3, p = 2/3

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