Signals and Systems - ECE Questions and Answers

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If p is the probability of success and q is the probability of failure, then the probability that there are r successes in n trails is

ⁿc_r p^r qⁿ ^- ^r

ⁿc_r p^{n -} ^r q^r

ⁿc_r p^r qⁿ ⁺ ^r

ⁿc_r pⁿ qⁿ ^{- r}

Answer : Option A

Explanation :

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