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1. In a black box. there are 5 red balls, 8 green balls, 7 black balls. a] If you pick without replacement. what is the

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1. In a black box. there are 5 red balls, 8 green balls, 7 black balls. a] If you pick without replacement. what is the probability that you will pick at least 2 green balls in the next 7 trials? b} If you pick with replacement, what is the probability that you will pick 3 black balls and at least 3 green balls in the next 7 trials? c) If you pick with replacement. what is the probability that you will need 7 picks to get 2 black balls

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