## Question

###### Suppose approximately 75% of all marketing personnel are extroverts, whereas about 50% of all computer programmers...

Suppose approximately 75% of all marketing personnel are extroverts, whereas about 50% of all computer programmers are introverts (Round your answers to three decimal places.) (a) At a meeting of 15 marketing personnel, what is the probablity that 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 probability that none are introverts? What is the probability that 3 or more are introverts? What is the probability that all are introverts?

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