The number of consumer complaints against the top airlines during the first six months of 2010 is given in the table to the right. Complete parts a through c. Airline Complaints Full data Complaints per 100,000 Passengers Boarding A 1177 2.21 B 670 1.54 C 483 1.81 D 429 1.67 E 360 1.63 F 145 0.31 G 78 0.68 H 65 0.87 I 53 0.73 J 36 0.46 a. By considering the numbers in the column labeled "Complaints," calculate the mean and median number of complaints per airline. The mean is __ (Type an integer or a decimal.) The median is (Type an integer or a decimal.) b. Explain why the averages found in part a are not meaningful. Choose the correct answer below. A. The average ticket price is unknown. B. The flight duration is unknown. C. The number of passengers boarding is not taken into consideration. c. Find the mean and median of the numbers in the column labeled "Complaints per 100,000 Passengers Boarding." Discuss whether these averages are meaningful. The mean is _ (Type an integer or a decimal.) The median is ___ (Type an integer or a decimal.) Are these averages meaningful? A. The averages are not meaningful because the number of passengers boarding is not taken into consideration. B. The averages are meaningful because the number of passengers boarding is not taken into consideration. C. The averages are meaningful because the number of passengers boarding is taken into consideration. D. The averages are not meaningful because the number of passengers boarding is taken into consideration.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The number of consumer complaints against the top airlines during the first six months of 2010 is given in the table to the right. Complete parts a through c.


Airline	Complaints	Full data Complaints per 100,000 Passengers Boarding
A	1177	2.21
B	670	1.54
C	483	1.81
D	429	1.67
E	360	1.63
F	145	0.31
G	78	0.68
H	65	0.87
I	53	0.73
J	36	0.46

a. By considering the numbers in the column labeled "Complaints," calculate the mean and median number of complaints per airline.

The mean is ____ (Type an integer or a decimal.)

The median is ____ (Type an integer or a decimal.)

b. Explain why the averages found in part a are not meaningful.

Choose the correct answer below.

A. The average ticket price is unknown.

B. The flight duration is unknown.

C. The number of passengers boarding is not taken into consideration.

c. Find the mean and median of the numbers in the column labeled "Complaints per 100,000 Passengers Boarding." Discuss whether these averages are meaningful.

The mean is _____ (Type an integer or a decimal.)

The median is _____ (Type an integer or a decimal.)

Are these averages meaningful?

A. The averages are not meaningful because the number of passengers boarding is not taken into consideration.

B. The averages are meaningful because the number of passengers boarding is not taken into consideration.

C. The averages are meaningful because the number of passengers boarding is taken into consideration.

D. The averages are not meaningful because the number of passengers boarding is taken into consideration.

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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