Suppose approximately 80% of all marketing personnel areextroverts, whereas about 70% of all computer programmers areintroverts. (For each answer, enter a number. Round your answers tothree decimal places.) (a) At a meeting of 15 marketing personnel,what is the probability that 10 or more are extroverts? What is theprobability that 5 or more are extroverts? What is the probabilitythat all are extroverts? (b) In a group of 4 computer programmers,what is the probability that none are introverts? What is theprobability that 2 or more are introverts? What is the probabilitythat all are introverts?
