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Suppose approximately 80% of all marketing personnel are extroverts, whereas about 60% of all computer programmers...

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Basic Math

Suppose approximately 80% of all marketing personnel areextroverts, whereas about 60% of all computer programmers areintroverts. (Round your answers to three decimal places.)
(a) At a meeting of 15 marketing personnel, what is the probabilitythat 10 or more are extroverts?


What is the probability that 5 or more are extroverts?


What is the probability that all are extroverts?


(b) In a group of 5 computer programmers, what is the probabilitythat none are introverts?


What is the probability that 3 or more are introverts?


What is the probability that all are introverts?

Answer & Explanation Solved by verified expert
4.4 Ratings (736 Votes)
a Pextroverts 080 X Binomial np Where n 15 p 080 Binomial probability distribution is PX    See Answer
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