10. [-12 Points] DETAILS BBUNDERSTAT13 5.R.010. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A consumer...

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10. [-12 Points] DETAILS BBUNDERSTAT13 5.R.010. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A consumer organization rated airlines and found that 89% of the flights involved in the study arrived on time (i.e., within 15 minutes of scheduled arrival time). Assuming that the on-time arrival rate is representative of the entire commercial airline industry, consider a random sample of 199 flights. (Round your answers to two decimal places.) What is the expected number that will arrive on time? What is the standard deviation of this distribution? Need Help? Read li 11. [-/3 Points] DETAILS BBUNDERSTAT13 5.R.016. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flying over similar distances in flatter portions of the nation, according to a General Accounting Office study completed in response to a congressional request. Suppose, the accident rate for small aircraft in the 11 mountainous western states is 2.6 accidents per 100,000 flight operations. (a) Letr = number of accidents for a given number of operations. Explain why the Poisson distribution would be a good choice for the probability distribution of r. Frequency of accidents is a common occurrence. It is reasonable to assume the events are independent. Frequency of accidents is a rare occurrence. It is reasonable to assume the events are dependent. Frequency of accidents is a common occurrence. It is reasonable to assume the events are dependent. Frequency of accidents is a rare occurrence. It is reasonable to assume the events are independent. (b) Find the probability of no accidents in 100,000 flight operations. (Round your answer to four decimal places.) (c) Find the probability of at least 4 accidents in 200,000 flight operations. (Round your answer to four decimal places.) Need Help? Read It 10. [-12 Points] DETAILS BBUNDERSTAT13 5.R.010. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A consumer organization rated airlines and found that 89% of the flights involved in the study arrived on time (i.e., within 15 minutes of scheduled arrival time). Assuming that the on-time arrival rate is representative of the entire commercial airline industry, consider a random sample of 199 flights. (Round your answers to two decimal places.) What is the expected number that will arrive on time? What is the standard deviation of this distribution? Need Help? Read li 11. [-/3 Points] DETAILS BBUNDERSTAT13 5.R.016. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flying over similar distances in flatter portions of the nation, according to a General Accounting Office study completed in response to a congressional request. Suppose, the accident rate for small aircraft in the 11 mountainous western states is 2.6 accidents per 100,000 flight operations. (a) Letr = number of accidents for a given number of operations. Explain why the Poisson distribution would be a good choice for the probability distribution of r. Frequency of accidents is a common occurrence. It is reasonable to assume the events are independent. Frequency of accidents is a rare occurrence. It is reasonable to assume the events are dependent. Frequency of accidents is a common occurrence. It is reasonable to assume the events are dependent. Frequency of accidents is a rare occurrence. It is reasonable to assume the events are independent. (b) Find the probability of no accidents in 100,000 flight operations. (Round your answer to four decimal places.) (c) Find the probability of at least 4 accidents in 200,000 flight operations. (Round your answer to four decimal places.) Need Help? Read It