Airlines must be aware of the weight of the aircraft plus everything on board. Based on thousands of flights, the mean and standard deviation for the weights of several items are shown in the table. The weights of the airplane, people/luggage, and fuel are assumed to be independent.
Airlines must be aware of the weight of the aircraft plus everything on board. Based on thousands of flights, the mean and standard deviation for the weights of several items are shown in the table. The weights of the airplane, people/luggage, and fuel are assumed to be independent.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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17. Airlines must be aware of the weight of the aircraft plus everything on board. Based on thousands of flights, the mean and standard deviation for the weights of several items are shown in the table. The weights of the airplane, people/luggage, and fuel are assumed to be independent.
Let the random variable T represent the total weight of the plane, people/luggage, and fuel for a randomly selected flight. Which of the following is closest to the standard deviation of T?
- (A) 2.45 tons
- (B) 4.00 tons
- (C) 6.00 tons
- (D) 75.0 tons
- (E) 120 tons
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