Can you please answer these for me?

Suppose approximately 80% of all marketing personnel are extroverts, whereas about 50% 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? 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