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Joe is attempting basketball free throws. The probability of success on each attempt is 0.39 and...

Joe is attempting basketball free throws. The probability of success on each attempt is 0.39 and his consecutive attempts are independent of each other. Answer the following questions. If Joe attempts three free throws, what is the probability he has at least one success?

(a) Let X be the number of attempts required for Joe to observe his first successful free throw. What kind of discrete random distribution for X? (Binomial, Poisson, or none of them)

(b) If Joe attempts 17 free throws, what is the probability he has exactly 7 successes?

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