The scheduling board at the SEA-TAC airport suggests that the flight time between Seattle and San Francisco is 137 minutes. Suppose the actual flight time is distributed continuously and uniformly between 2 and 2½ hours. Determine the probability the flight time will be: a) At least 146 minutes. b) Airport statistician calculated that the expected time of a flight is greater than the time shown on the scheduling board. Is she correct? Show work. c) What is the standard deviation of the flight time? H d) Determine the probability a flight time is within one standard deviation of the expected flight time.
The scheduling board at the SEA-TAC airport suggests that the flight time between Seattle and San Francisco is 137 minutes. Suppose the actual flight time is distributed continuously and uniformly between 2 and 2½ hours. Determine the probability the flight time will be: a) At least 146 minutes. b) Airport statistician calculated that the expected time of a flight is greater than the time shown on the scheduling board. Is she correct? Show work. c) What is the standard deviation of the flight time? H d) Determine the probability a flight time is within one standard deviation of the expected flight time.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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