Solutions for Excursions In Modern Mathematics, 9th Edition
Problem 1E:
Exercises 1 through 4 refer to the data set shown in Table 15-12. The table shows the scores on a...Problem 2E:
Exercises 1 through 4 refer to the data set shown in Table 15-12.The table shows the scores on a...Problem 3E:
Exercises 1 through 4 refer to the data set shown in Table 15-12 The table shows the scores on a...Problem 4E:
Exercises 1 through 4 refer to the data set shown in Table 15-12 The table shows the scores on a...Problem 5E:
Exercises 5 through 10 refer to Table 15-13, which gives the home-to- school distance d rounded to...Problem 6E:
Exercises 5 through 10 refer to Table 15-13, which gives the home-to- school distance d rounded to...Problem 7E:
Exercises 5 through 10 refer to Table 15-13, which gives the home-to- school distance d rounded to...Problem 8E:
Exercise 5 through 10 refer to Table 15-13, which gives the home-to-school distance d rounded to the...Problem 9E:
Exercise 5 through 10 refer to Table 15-13, which gives the home-to-school distance d rounded to the...Problem 10E:
Exercise 5 through 10 refer to Table 15-13, which gives the home-to-school distance d rounded to the...Problem 11E:
Exercise 11 and 12 refer to the bar graph shown in Fig. 15-15 describing the scores of a group of...Problem 12E:
Exercise 11 and 12 refer to the bar graph shown in Fig. 15-15 describing the scores of a group of...Problem 13E:
Exercise 13 and 14 refer to the pie chart in Fig. 15-16. Figure 15-16 Source: Centers for Disease...Problem 14E:
Exercise 13 and 14 refer to the pie chart in Fig. 15-16. Figure 15-16 Source: Centers for Disease...Problem 15E:
Table 15-14 shows the class interval frequencies for the 2015 Critical Reading scores on the SAT....Problem 16E:
Table 15-15 shows the class interval frequencies for the 2015 writing scores on the SAT. Draw a pie...Problem 17E:
Table 15-16 shows the percentage of U.S. working married couples in which the wifes income is higher...Problem 18E:
Table 15-17 shows the percentage of U.S. workers who are members of unions 2000-2011. a. Draw a...Problem 19E:
Exercises 19 and 20 refer to Table 15-18, which shows the birth weights in ounces of the 625 babies...Problem 20E:
More than Less than or equal to Number of babies More than Less than or equal to Number of babies 48...Problem 21E:
Exercises 21 and 22 refer to the two histograms shown in Fig. 15-17 summarizing the 2016 payrolls of...Problem 22E:
Exercises 21 and 22 refer to the two histograms shown in Fig. 15-17 summarizing the 2016 payrolls of...Problem 23E:
Consider the data set {3,5,7,4,8,2,8,3,6}. a.Find the average A of the data set. b.Find the median M...Problem 24E:
Consider the data set {4,6,8,5.2,10.4,10,12.6,13} a. Find the average A of the data set. b. Find the...Problem 25E:
Find the average A and median M of each of the data set. a. {0,1,2,3,4,5,6,7,8,9} b....Problem 26E:
Find the average A and median M of each of the data set. a. {1,2,1,2,1,2,1,2,1,2} b....Problem 28E:
Find the average A and median M of each of the data set. a. {5,10,15,20,25,30,35,40,45,50} b....Problem 29E:
Table 15-19 shows the results of a 5-point musical test given to a group of first-grade students. a....Problem 30E:
Table 15-20 shows the ages of the firefighters in the Cleansburg fire department. Table 15-20 Age 25...Problem 31E:
Table 15-21 shows the relative frequencies of the scores of a group of students on a philosophy...Problem 32E:
Table 15-22 shows the relative frequencies of the scores of a group of students on a 10-point math...Problem 33E:
Consider the data set {5,7,4,8,2,8,3,6}. a. Find the first quartile Q1 of the data set. b. Find the...Problem 34E:
Consider the data set {4,6,8,5.2,10.4,10,12.6,13}. a. Find the first quartile Q1 of the data set. b....Problem 35E:
For each data set, find the 75th and the 90th percentile. a. {1,2,3,4,...,98,99,100} b....Problem 36E:
For each data set, find the 10th and the 25th percentile. a. {1,2,3,...,49,50,50,49,...,3,2,1} b....Problem 37E:
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 This...Problem 38E:
This exercise refers to the math quiz scores shown in Table 15-22 Exercise 32. a. Find the first...Problem 40E:
Exercise 39 and 40 refer to SAT test scores for 2014. A total of N=1,672,395 college-bound students...Problem 41E:
Consider the data set {5,7,4,8,2,8,3,6}. a. Find the five-number summary of the data set Hint: see...Problem 42E:
Consider the data set {4,6,8,5.2,10.4,10,12.6,13}. a. Find the five-number summary of the data set...Problem 44E:
This exercise refers to the distribution of the math quiz scores shown in Table 15-22 Exercise 32...Problem 45E:
Exercises 45 and 46 refer to the two box plots in Fig. 15-18 showing the starting salaries of...Problem 46E:
Exercises 45 and 46 refer to the two box plots in Fig. 15-18 showing the starting salaries of...Problem 47E:
For the data set {5,7,4,8,2,8,3,6}, find a. the range. b. the interquartile range see Exercise 33.Problem 48E:
For the data set {4,6,8,5.2,10.4,10,12.6,13}, find a. the range. b. the interquartile range see...Problem 49E:
A realty company has sold N=341 homes in the last year. The five-number summary for the sale prices...Problem 50E:
Exercise 45 and 46 refer to the box plot in Fig.15-18 showing the starting salaries of Tasmania...Problem 52E:
For Exercises 51 through 54, you should use the following definition of an outlier: An outlier is...Problem 53E:
For Exercises 51 through 54, you should use the following definition of an outlier: An outlier is...Problem 54E:
For Exercises 51 through 54, you should use the following definition of an outlier: An outlier is...Problem 55E:
The purpose of Exercises 55 and 56 is to practice computing standard deviations the old fashioned...Problem 56E:
The purpose of Exercises 55 and 56 is to practice computing standard deviations the old fashioned...Problem 57E:
Exercises 57 and 58 refer to the mode of a data set. The mode of a data set is the data point that...Problem 58E:
Exercises 57 and 58 refer to the mode of a data set. The mode of a data set is the data point that...Problem 59E:
Mikes average on the first five exams in Econ 1A is 88. What must he earn on the next exam to raise...Problem 60E:
Explain each of the following statements regarding the median score in one of the SAT sections: a....Problem 61E:
In 2006, the median SAT score was the average of d732,872 and d732,873, where {d1,d2,,dN} denotes...Problem 62E:
In 2004, the third quartile SAT scores was d1,064,256, where {d1,d2,.....,dN} denotes the data set...Problem 64E:
Suppose that the average of 10 numbers is 7.5 and that the smallest of them is Min=3. a. What is the...Problem 66E:
What happens to the five-number summary of the Stat 101 data set see Example 15.14 if a. two points...Browse All Chapters of This Textbook
Chapter 1 - The Mathematics Of Elections The Paradoxes Of DemocracyChapter 2 - The Mathematics Of Power Weighted VotingChapter 3 - The Mathematics Of Sharing Fair-division GamesChapter 4 - The Mathematics Of Apportionment Making The RoundsChapter 5 - The Mathematics Of Getting Around Euler Paths And CircuitsChapter 6 - The Mathematics Of Touring Traveling Salesman ProblemsChapter 7 - The Mathematics Of Networks The Cost Of Being ConnectedChapter 8 - The Mathematics Of Scheduling Chasing The Critical PathChapter 9 - Population Growth Models There Is Strength In NumbersChapter 10 - Financial Mathematics Money Matters
Chapter 11 - The Mathematics Of Symmetry Beyond ReflectionChapter 12 - Fractal Geometry The Kinky Nature Of NatureChapter 13 - Fibonacci Numbers And The Golden Ratio Tales Of Rabbits And GnomonsChapter 14 - Censuses, Surveys, Polls, And Studies The Joys Of Collecting DataChapter 15 - Graphs, Charts And Numbers The Data Show And TellChapter 16 - Probabilities, Odds, And Expectations Measuring Uncertainty And RiskChapter 17 - The Mathematics Of Normality The Call Of The Bell
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