17. [-/22 Points] DETAILS BBUNDERSTAT12 5.2.023.MI.SA. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise Suppose approximately 70% of all marketing personnel are extroverts, whereas about 80% of all computer programmers are introverts. (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 4 computer programmers, what is the probability that none are introverts? What is the probability that 2 or more are introverts? What is the probability that all are introverts? Step 1 (a) At a meeting of 15 marketing personnel, what is the probability that 10 or more are extroverts? A binomial experiment has a fixed number of independent trials and only two possible outcomes. Recall that the binomial distribution with parameters n, p, and r gives the probability distribution of the number of r successes in a sequence of n trials, each of which yields success with probability p. Each person at the meeting may or may not be found to be an extrovert. Since the meeting of marketing personnel has 15 people, the number of trials is n = "Success" here can be defined as finding an extrovert. It is given that approximately 70% of all marketing personnel are extroverts, so each person at the meeting has a 70% chance of being an extrovert. Therefore, p = Submit Skip (you cannot come back