Excursions In Modern Mathematics, 9th Edition

9th Edition

ISBN: 9780134494142

Author: Tannenbaum

Publisher: PEARSON

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Textbook Question

Chapter 15, Problem 52E

For Exercises 51 through 54, you should use the following definition of an outlier: An outlier is any data value that is above the third quartile by more than 1.5 times the IQR [Outlier> Q 3 + l.5(IQR)] or below the first quartile by more than 1.5 times the IQR [Outlier < Q 1 — l.5(IQR)]. (Note: There is no one universally agreed upon definition of an outlier; this is but one of several definitions used by statisticians.)

Using the preceding definition, find the outliers (if there are any) in the City of Cleansburg Fire Department data set discussed in Exercises 30 and 37. (Hint: Do Exercise 37 first.)

Table 15-20 shows ages of the firefighters in the Cleansburg fire department.

Table 15-20

Age	25	27	28	29	30
Frequency	2	7	6	9	15
Age	31	32	33	37	39
Frequency	12	9	9	6	4

Using the preceding definition, find the outliers (if there are any) in the City of Cleansburg Fire Department data set discussed in Exercises 30 and 37. (Hint: Do Exercise 37 first.)

Table 15-20 shows ages of the firefighters in the Cleansburg fire department.

Table 15-20

Age	25	27	28	29	30
Frequency	2	7	6	9	15
Age	31	32	33	37	39
Frequency	12	9	9	6	4

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Chapter 15, Problem 51E

Chapter 15, Problem 53E

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Chapter 15 Solutions

Excursions In Modern Mathematics, 9th Edition

Ch. 15 - Exercises 1 through 4 refer to the data set shown...Ch. 15 - Exercises 1 through 4 refer to the data set shown...Ch. 15 - Exercises 1 through 4 refer to the data set shown...Ch. 15 - Exercises 1 through 4 refer to the data set shown...Ch. 15 - Exercises 5 through 10 refer to Table 15-13, which...Ch. 15 - Exercises 5 through 10 refer to Table 15-13, which...Ch. 15 - Exercises 5 through 10 refer to Table 15-13, which...Ch. 15 - Exercise 5 through 10 refer to Table 15-13, which...Ch. 15 - Exercise 5 through 10 refer to Table 15-13, which...Ch. 15 - Exercise 5 through 10 refer to Table 15-13, which...

Ch. 15 - Exercise 11 and 12 refer to the bar graph shown in...Ch. 15 - Exercise 11 and 12 refer to the bar graph shown in...Ch. 15 - Exercise 13 and 14 refer to the pie chart in Fig....Ch. 15 - Exercise 13 and 14 refer to the pie chart in Fig....Ch. 15 - Table 15-14 shows the class interval frequencies...Ch. 15 - Table 15-15 shows the class interval frequencies...Ch. 15 - Table 15-16 shows the percentage of U.S. working...Ch. 15 - Table 15-17 shows the percentage of U.S. workers...Ch. 15 - Exercises 19 and 20 refer to Table 15-18, which...Ch. 15 - More than Less than or equal to Number of babies...Ch. 15 - Exercises 21 and 22 refer to the two histograms...Ch. 15 - Exercises 21 and 22 refer to the two histograms...Ch. 15 - Consider the data set {3,5,7,4,8,2,8,3,6}. a.Find...Ch. 15 - Consider the data set {4,6,8,5.2,10.4,10,12.6,13}...Ch. 15 - Find the average A and median M of each of the...Ch. 15 - Find the average A and median M of each of the...Ch. 15 - Find the average A and median M of each of the...Ch. 15 - Find the average A and median M of each of the...Ch. 15 - Table 15-19 shows the results of a 5-point musical...Ch. 15 - Table 15-20 shows the ages of the firefighters in...Ch. 15 - Table 15-21 shows the relative frequencies of the...Ch. 15 - Table 15-22 shows the relative frequencies of the...Ch. 15 - Consider the data set {5,7,4,8,2,8,3,6}. a. Find...Ch. 15 - Consider the data set {4,6,8,5.2,10.4,10,12.6,13}....Ch. 15 - For each data set, find the 75th and the 90th...Ch. 15 - For each data set, find the 10th and the 25th...Ch. 15 - Table 15-20 Age 25 27 28 29 30 Frequency 2 7 6 9...Ch. 15 - This exercise refers to the math quiz scores shown...Ch. 15 - Prob. 39E Ch. 15 - Exercise 39 and 40 refer to SAT test scores for...Ch. 15 - Consider the data set {5,7,4,8,2,8,3,6}. a. Find...Ch. 15 - Consider the data set {4,6,8,5.2,10.4,10,12.6,13}....Ch. 15 - Prob. 43E Ch. 15 - This exercise refers to the distribution of the...Ch. 15 - Exercises 45 and 46 refer to the two box plots in...Ch. 15 - Exercises 45 and 46 refer to the two box plots in...Ch. 15 - For the data set {5,7,4,8,2,8,3,6}, find a. the...Ch. 15 - For the data set {4,6,8,5.2,10.4,10,12.6,13}, find...Ch. 15 - A realty company has sold N=341 homes in the last...Ch. 15 - Exercise 45 and 46 refer to the box plot in...Ch. 15 - Prob. 51E Ch. 15 - For Exercises 51 through 54, you should use the...Ch. 15 - For Exercises 51 through 54, you should use the...Ch. 15 - For Exercises 51 through 54, you should use the...Ch. 15 - The purpose of Exercises 55 and 56 is to practice...Ch. 15 - The purpose of Exercises 55 and 56 is to practice...Ch. 15 - Exercises 57 and 58 refer to the mode of a data...Ch. 15 - Exercises 57 and 58 refer to the mode of a data...Ch. 15 - Mikes average on the first five exams in Econ 1A...Ch. 15 - Explain each of the following statements regarding...Ch. 15 - In 2006, the median SAT score was the average of...Ch. 15 - In 2004, the third quartile SAT scores was...Ch. 15 - Prob. 63E Ch. 15 - Suppose that the average of 10 numbers is 7.5 and...Ch. 15 - Prob. 65E Ch. 15 - What happens to the five-number summary of the...Ch. 15 - Prob. 67E Ch. 15 - Prob. 68E Ch. 15 - Prob. 69E Ch. 15 - Prob. 70E Ch. 15 - Prob. 71E Ch. 15 - Prob. 72E Ch. 15 - Prob. 73E Ch. 15 - Suppose that the standard deviation of the data...Ch. 15 - Chebyshevs theorem. The Russian mathematician P.L....

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Solution Summary: The author calculates the number of firefighters in the Cleansburg fire department. The first quartile is the 20th firefighter.

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Chapter 15 Solutions