Suppose approximately 80% of all marketing personnel are extroverts, whereas about 60% of all computer programmers are introverts. (For each answer, enter a number. Round your answers to three decimal places.)

(a) At a meeting of 15 marketing personnel, what is the probability that 10 or more are extroverts? .164 X What is the probability that 5 or more are extroverts? .000 X What is the probability that all are extroverts? : (b) In a group of 5 computer programmers, what is the probability that none are introverts? I: What is the probability that 3 or more are introverts? I: What is the probability that all are introverts? I: Need Help? __