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Suppose in a population of fruit flies, the probability of white eyes is1/4,and the probability of...

Suppose in a population of fruit flies, the probability of white eyes is1/4,and the probability of red eyes is3/4. We’ll treat these observations as independentBernoulli trials. What’s the probability that exactly4flies are needed before we observea white-eyed fly? What’s the probability that at least4flies are needed

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