B webassignnet Homew... E X Probability 0 0.421875 2 0.140625 SSS' l l 1 0.421875 3 0.015625 5. [0.82/1.25 Points] PREVIOUS ANSWERS A group of 10 students' cholesterol levels are tested. Suppose the probability of a student having a healthy cholesterol level is 0.20. ASK YOUR TEACHER (a) A binomial experiment has a xed number of trials, n. For this experiment, what is the value of n? 10 ./ (b) What is the probability of a success? 020 J (c) What is the probability that exactly seven out of 10 students have healthy cholesterol levels? (Round your answer to three decimal places.) X Submit Answer 6. [1.25/1.25 Points] PREVIOUS ANSWERS ASK YOUR TEACHER An article reported that what airline passengers like to do most on long flights is rest or sleep; in a survey of 3697 passengers, almost 90% did 50. Suppose that for a particular route the actual percentage is exactly 90%, and consider randomly selecting six passengers. Then x, the number among the selected six who rested or slept, is a binomial random variable with n = 6 and p = 0.9. (Round your answers to four decimal places.) (3) Calculate p(4). p(4) = 0.0984