INTRODUCTORY STATISTICS (LOOSELEAF)
3rd Edition
ISBN: 9780135163146
Author: Gould
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 68CRE
Shoe Sizes The graph shows shoe sizes for men and women. Compare shapes, centers, and spreads, and mention if there are outliers.
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Determine whether the following statement is true or false. If it is false, rewrite it as a true statement.
The mean is the measure of central tendency most likely to be affected by an outlier.
Choose the correct answer below.
OA. The statement is false. Outliers do not affect any measure of central tendency.
B. The statement is false. The mode is the measure of central tendency most likely to be affected by an outlier.
OC. The statement is false. The median is the measure of central tendency most likely to be affected by an outlier.
OD. The statement is true.
Explain how the interquartile range of a data set can be used to identify outliers.
The interquartile range (IQR) of a data set can be used to identify outliers because data values that are
greater than
equal to
less than
or
are considered outliers.
15
Chapter 2 Solutions
INTRODUCTORY STATISTICS (LOOSELEAF)
Ch. 2 - Pulse Rates The dotplot shown is for resting pulse...Ch. 2 - Glucose A dotplot of the glucose readings from 132...Ch. 2 - Pulse Rates The histogram shown is for pulse rates...Ch. 2 - Fast Food Calories The histogram shown is for...Ch. 2 - Pulse Rates (Example 1) The resting pulse rates...Ch. 2 - Post Office Customers A post office branch...Ch. 2 - Cereals The following dotplots show the number of...Ch. 2 - Coins’ Weights The weights of coins (in grams)...Ch. 2 - Sleep (Example 2) An instructor asks a class of...Ch. 2 - Parking Tickets A group of 80 drivers in a large...
Ch. 2 - Arm spans (Example 3) According to the ancient...Ch. 2 - Tuition The distribution of in-state annual...Ch. 2 - Pulse Rates (Example 4) From the histogram in...Ch. 2 - Fast Food Calories From the histogram shown in...Ch. 2 - BMI (Example 5) The histograms show the Body Mass...Ch. 2 - Triglycerides The histograms show triglyceride...Ch. 2 - Education (Example 6) In 2012, the General Social...Ch. 2 - Siblings The histogram shows the distribution of...Ch. 2 - Monthly Car Costs The histograms show the monthly...Ch. 2 - Car MPG The histograms show the miles per gallon...Ch. 2 - Matching Histograms Match each of the three...Ch. 2 - Matching Match each histogram given with the...Ch. 2 - Matching Match each description with the correct...Ch. 2 - Matching Match each description with the correct...Ch. 2 - Comparing Weights of Olympic Hockey and Soccer...Ch. 2 - Rents in San Francisco The data show monthly rents...Ch. 2 - Textbook Prices The table shows prices of 50...Ch. 2 - SAT scores The following table shows a random...Ch. 2 - Animal Longevity The following table in Exercise...Ch. 2 - Animal Gestation Periods The accompanying table...Ch. 2 - Tax Rate A StatCrunch survey asked people what...Ch. 2 - Pets A StatCrunch survey asked people whether they...Ch. 2 - Law School Tuition Data are shown for the cost of...Ch. 2 - Text Messages Recently, 115 users of StatCrunch...Ch. 2 - Beer, Calories Data are available on the number of...Ch. 2 - Beer, Alcohol Data are available on the percent...Ch. 2 - Changing Multiple-Choice Answers When Told Not to...Ch. 2 - Preventable Deaths According to the World Health...Ch. 2 - Ice Cream Preference (Example 8) Suppose a group...Ch. 2 - Prob. 40SECh. 2 - Gun Availability Pew Research conducted a survey...Ch. 2 - Entry-Level Education The Bureau of Labor...Ch. 2 - Obesity Among Adults (Example 9) Data on obesity...Ch. 2 - Fitness Among Adults Data on the percentage of...Ch. 2 - Internet Browsers The following table gives the...Ch. 2 - Commercial Radio The following table gives the...Ch. 2 - Garage The accompanying graph shows the...Ch. 2 - Body Image A student has gathered data on...Ch. 2 - Pie Chart of Sleep Hours The pie chart reports the...Ch. 2 - Age and Gender The following graph shows the ages...Ch. 2 - Musicians Survey: StatCrunch Graph The...Ch. 2 - Cell Phone Use Refer to the accompanying bar...Ch. 2 - Sleep The following table shows the first few...Ch. 2 - Majors The following table shows the first few...Ch. 2 - Hormone Replacement Therapy The use of the drug...Ch. 2 - E-Music The bar graph shows information reported...Ch. 2 - Hormone Replacement Therapy Again The following...Ch. 2 - Holding Your Breath A group of students held their...Ch. 2 - Global Temperatures The histograms show the...Ch. 2 - Employment after Law School Accredited law schools...Ch. 2 - Opinions on Nuclear Energy People were asked...Ch. 2 - Stem Cell Research People were asked whether they...Ch. 2 - Create a dotplot that has at least 10 observations...Ch. 2 - Create a dotplot that has at least 10 observations...Ch. 2 - Traffic Cameras College students Jeannette Mujica,...Ch. 2 - Ideal Weight Thirty-nine students (26 women and 13...Ch. 2 - MPH The graphs show the distribution of...Ch. 2 - Shoe Sizes The graph shows shoe sizes for men and...Ch. 2 - CEO Salaries Predict the shape of the distribution...Ch. 2 - Cigarettes A physician asks all of his patients to...Ch. 2 - Changing Multiple-Choice Answers When Told to Do...Ch. 2 - ER Visits for Injuries The graph shows the rates...Ch. 2 - Social Media Use The Pew Research Center documents...Ch. 2 - Social Media Use The Pew Research Center gathered...Ch. 2 - Choosing a Graph For each situation, describe the...Ch. 2 - Choosing a Graph For each situation, describe the...
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- The table that follows shows the weekend gross ticket sales for the top20 movies for the weekend of June 25, 2010: Please see the attachment for details: a. Draw a stem and leaf plot for the data. Describe the shape of the distribution. Are there any outliers?b. Construct a dotplot for the data. Which of the two graphs is more informative? Explain.arrow_forwardDetermine whether the following statement is true or false. If it is false, rewrite it as a true statement. The mean is the measure of central tendency most likely to be affected by an outlier. C Choose the correct answer below. OA. The statement is true. B. The statement is false. The mode is the measure of central tendency most likely to be affected by an outlier. OC. The statement is false. The median is the measure of central tendency most likely to be affected by an outlier. OD. The statement is false. Outliers do not affect any measure of central tendency.arrow_forwardshow every detail.arrow_forward
- College students recorded the self-reported weights (in pounds) of some community college male baseball players and male soccer players. Write a brief comparison of the distributions of weights for the two groups. Include appropriate graphics. Click the icon to view the weights of male baseball and soccer players. Make dotplots using the same axis with one set of data above the other. Choose the correct graph below. Click here to view dotplots C Click here to view dotplots D. Click here to view dofplots B. O Click here to view dotplats A Compare the shape, center, and variation (and mention outliers if there were any). Baseball players' weights are to weigh with The soccer players' weights are with The baseball players tend soccer players. The baseball players have a distribution with variability than the soccer players' distribution. Data table Baseball Players' Weights: 190,192,183,183,190,187,187,187,192,192,184,184,184,192,187,228,183,190,180,184,183,187,184,184,205,187,230 Soccer…arrow_forwardA restaurant records which combo customers order for a time. Determine the median of the dataarrow_forwardDetermine whether the following statement is true or false. If it is false, rewrite it as a true statement. The mean is the measure of central tendency most likely to be affected by an outlier. Choose the correct answer below. C OA. The statement is false. Outliers do not affect any measure of central tendency. OB. The statement is false. The median is the measure. f central tendency most likely to be affected by an outlier. OC. The statement is false. The mode is the measure f central tendency most likely to be affected by an outlier. OD. The statement is true.arrow_forward
- The data for numbers of times per week 22 students at Denver High eat fruit are shown below: What are the outliers in these data? Show your work. (calculations)arrow_forwardBoxplots have been used successfully to describeA. center of a data setB. spread of a data setC. the extent and nature of any departure from symmetryD. identification of “outliers”E. All of the abovearrow_forwardDescribe the location of the mean, mode, and median by giving an example and explain why each is in the location that you have placed it. Graph the distribution and mark each of the 3 values (mean, mode, and median).arrow_forward
- Explain how the interquartile range of a data set can be used to identify outliers. The interquartile range (IQR) of a data set can be used to identify outliers because data values that are or are considered outl Q3 + 1.5(IQR) IQR Q3 + IQR Q3 - 1.5(IQR)arrow_forwardQ7; We have seen that outliers can produce problematic results. Rank the following measures in order of “least affected by outliers” to “most affected by outliers”. A. Mean, median, range. B. Range, median, mean C. Median, mean, range. D. Median, range, mean.arrow_forwardThere are three types of plot to choose from: boxplot, bar chart, and pie chart. Which of the plots is best for continuous data?arrow_forward
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