Approximately 65% of all marketing personnel are extroverts, whereas about 50% of all computer programmers are introverts.
At a meeting of 10 marketing personnel, what is the probability that 11 or more are extroverts? (Use 3 decimal places.)
What is the probability that 6 or more are extroverts? (Use 3 decimal places.)
What is the probability that all extroverts? (Use 3 decimal places.)
(b) In a group of 4 computer programmers, what is the probability that none are introverts? (Use 3 decimal places.)
What is the probability that 2 or more are introverts? (Use 3 decimal places.)
What is the probability that all are introverts? (Use 3 decimal places.)