,Business Statistics and Analytics in Practice, 10the (Bowerman)
x x x x x x x
Chapter 2 Descriptive Statistics and Analytics: Tabular and Graphical Methods
x x x x x x x x
1) A stem-and-leaf display is a graphical portrayal of a data set that shows the data set's overall
x x x x x x x x x x x x x x x x
pattern of variation.
x x x
Answer: TRUE x x
Explanation: This kind of graph places the measurements in order from smallest to largest.
x x x x x x x x x x x x x
Difficulty: 2 Medium
x x x
Topic: Stem-and-Leaf Displays
x x x
Learning Objective: 02-05 Construct and interpret stem-and-leaf displays.
x x x x x x x
Bloom's: Remember
x x
AACSB: Reflective Thinking x x
Accessibility: Keyboard Navigation
x x x
2) The relative frequency is the frequency of a class divided by the total number of
x x x x x x x x x x x x x x
measurements.
x
Answer: TRUE x x
Explanation: This is used when we wish to summarize the proportion (or fraction) of items in each
x x x x x x x x x x x x x x x x
class.
x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Qualitative Data; Graphically Summarizing Quantitative Data
x x x x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x x
histograms, frequency polygons, and ogives.; 02-01 Summarize qualitative data by using
x x x x x x x x x x x
frequency distributions, bar charts, and pie charts.
x x x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
3) A bar chart is a graphic that can be used to depict qualitative data.
x x x x x x x x x x x x x
Answer: TRUE x x
Explanation: A bar chart is a graphic that depicts a frequency, relative frequency, or percent
x x x x x x x x x x x x x x
frequency distribution.
x x
Difficulty: 1 Easy x x
Topic: Graphically Summarizing Qualitative Data
x x x x x
Learning Objective: 02-01 Summarize qualitative data by using frequency distributions, bar
x x x x x x x x x x
charts, and pie charts.
x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
1
Copyright 2019 © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior
x x x x x x x x x x x x x x
written consent of McGraw-Hill Education. x x x x x
mynursytest.store
,4) Stem-and-leaf displays and dot plots are useful for detecting outliers. x x x x x x x x x
Answer: TRUE x x
Explanation: Since this graph places the measurements in order from smallest to largest, it
x x x x x x x x x x x x x
allows the analyst to see all of the measurements in the data set.
x x x x x x x x x x x x x
Difficulty: 2 Medium x x
Topic: Stem-and-Leaf Displays; Dot Plots
x x x x x
Learning Objective: 02-05 Construct and interpret stem-and-leaf displays.; 02-04 Construct and
x x x x x x x x x x
interpret dot plots.
x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
5) A scatter plot can be used to identify outliers.
x x x x x x x x
Answer: FALSE x x
Explanation: A scatter plot is used to identify the relationship between two variables. Difficulty:
x x x x x x x x x x x x x
2 Medium
x x
Topic: Scatter Plots
x x x
Learning Objective: 02-07 Examine the relationships between variables by using scatter plots.
x x x x x x x x x x x
Bloom's: Remember
x x
AACSB: Reflective Thinking x x
Accessibility: Keyboard Navigation
x x x
6) When looking at the shape of the distribution using a histogram, a distribution is skewed to the
x x x x x x x x x x x x x x x x
right when the left tail is shorter than the right tail.
x x x x x x x x x x x
Answer: TRUE x x
Explanation: This type of histogram has a high frequency number of data points on the right
x x x x x x x x x x x x x x x
compared to the left side of the histogram.
x x x x x x x x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Quantitative Data
x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x
histograms, frequency polygons, and ogives.
x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
2
Copyright 2019 © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior
x x x x x x x x x x x x x x
written consent of McGraw-Hill Education. x x x x x
mynursytest.store
, 7) When we wish to summarize the proportion (or fraction) of items in a class, we use the
x x x x x x x x x x x x x x x x
frequency distribution for each class.
x x x x x
Answer: FALSE x x
Explanation: The relative frequency summarizes the proportion (or fraction) of items in a class.
x x x x x x x x x x x x x
Frequency distribution shows actual counts of items in each class.
x x x x x x x x x x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Qualitative Data; Graphically Summarizing Quantitative Data
x x x x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x x
histograms, frequency polygons, and ogives.; 02-01 Summarize qualitative data by using
x x x x x x x x x x x
frequency distributions, bar charts, and pie charts.
x x x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
8) When establishing the classes for a frequency distribution, it is generally agreed that the more
x x x x x x x x x x x x x x
classes you use the better your frequency distribution will be.
x x x x x x x x x x
Answer: FALSE x x
Explanation: Classes should be determined by the number of data measurements.
x x x x x x x x x x
Difficulty: 1 Easy
x x x
Topic: Graphically Summarizing Quantitative Data
x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x
histograms, frequency polygons, and ogives.
x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
9) The cumulative frequency for a class will always be at least as large as the cumulative
x x x x x x x x x x x x x x x
frequency for any class with a smaller upper boundary.
x x x x x x x x x
Answer: TRUE x x
Explanation: This is the number of measurements that are less than the upper boundary of the
x x x x x x x x x x x x x x x
class.
x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Quantitative Data
x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x
histograms, frequency polygons, and ogives.
x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
3
Copyright 2019 © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior
x x x x x x x x x x x x x x
written consent of McGraw-Hill Education. x x x x x
mynursytest.store
x x x x x x x
Chapter 2 Descriptive Statistics and Analytics: Tabular and Graphical Methods
x x x x x x x x
1) A stem-and-leaf display is a graphical portrayal of a data set that shows the data set's overall
x x x x x x x x x x x x x x x x
pattern of variation.
x x x
Answer: TRUE x x
Explanation: This kind of graph places the measurements in order from smallest to largest.
x x x x x x x x x x x x x
Difficulty: 2 Medium
x x x
Topic: Stem-and-Leaf Displays
x x x
Learning Objective: 02-05 Construct and interpret stem-and-leaf displays.
x x x x x x x
Bloom's: Remember
x x
AACSB: Reflective Thinking x x
Accessibility: Keyboard Navigation
x x x
2) The relative frequency is the frequency of a class divided by the total number of
x x x x x x x x x x x x x x
measurements.
x
Answer: TRUE x x
Explanation: This is used when we wish to summarize the proportion (or fraction) of items in each
x x x x x x x x x x x x x x x x
class.
x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Qualitative Data; Graphically Summarizing Quantitative Data
x x x x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x x
histograms, frequency polygons, and ogives.; 02-01 Summarize qualitative data by using
x x x x x x x x x x x
frequency distributions, bar charts, and pie charts.
x x x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
3) A bar chart is a graphic that can be used to depict qualitative data.
x x x x x x x x x x x x x
Answer: TRUE x x
Explanation: A bar chart is a graphic that depicts a frequency, relative frequency, or percent
x x x x x x x x x x x x x x
frequency distribution.
x x
Difficulty: 1 Easy x x
Topic: Graphically Summarizing Qualitative Data
x x x x x
Learning Objective: 02-01 Summarize qualitative data by using frequency distributions, bar
x x x x x x x x x x
charts, and pie charts.
x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
1
Copyright 2019 © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior
x x x x x x x x x x x x x x
written consent of McGraw-Hill Education. x x x x x
mynursytest.store
,4) Stem-and-leaf displays and dot plots are useful for detecting outliers. x x x x x x x x x
Answer: TRUE x x
Explanation: Since this graph places the measurements in order from smallest to largest, it
x x x x x x x x x x x x x
allows the analyst to see all of the measurements in the data set.
x x x x x x x x x x x x x
Difficulty: 2 Medium x x
Topic: Stem-and-Leaf Displays; Dot Plots
x x x x x
Learning Objective: 02-05 Construct and interpret stem-and-leaf displays.; 02-04 Construct and
x x x x x x x x x x
interpret dot plots.
x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
5) A scatter plot can be used to identify outliers.
x x x x x x x x
Answer: FALSE x x
Explanation: A scatter plot is used to identify the relationship between two variables. Difficulty:
x x x x x x x x x x x x x
2 Medium
x x
Topic: Scatter Plots
x x x
Learning Objective: 02-07 Examine the relationships between variables by using scatter plots.
x x x x x x x x x x x
Bloom's: Remember
x x
AACSB: Reflective Thinking x x
Accessibility: Keyboard Navigation
x x x
6) When looking at the shape of the distribution using a histogram, a distribution is skewed to the
x x x x x x x x x x x x x x x x
right when the left tail is shorter than the right tail.
x x x x x x x x x x x
Answer: TRUE x x
Explanation: This type of histogram has a high frequency number of data points on the right
x x x x x x x x x x x x x x x
compared to the left side of the histogram.
x x x x x x x x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Quantitative Data
x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x
histograms, frequency polygons, and ogives.
x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
2
Copyright 2019 © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior
x x x x x x x x x x x x x x
written consent of McGraw-Hill Education. x x x x x
mynursytest.store
, 7) When we wish to summarize the proportion (or fraction) of items in a class, we use the
x x x x x x x x x x x x x x x x
frequency distribution for each class.
x x x x x
Answer: FALSE x x
Explanation: The relative frequency summarizes the proportion (or fraction) of items in a class.
x x x x x x x x x x x x x
Frequency distribution shows actual counts of items in each class.
x x x x x x x x x x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Qualitative Data; Graphically Summarizing Quantitative Data
x x x x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x x
histograms, frequency polygons, and ogives.; 02-01 Summarize qualitative data by using
x x x x x x x x x x x
frequency distributions, bar charts, and pie charts.
x x x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
8) When establishing the classes for a frequency distribution, it is generally agreed that the more
x x x x x x x x x x x x x x
classes you use the better your frequency distribution will be.
x x x x x x x x x x
Answer: FALSE x x
Explanation: Classes should be determined by the number of data measurements.
x x x x x x x x x x
Difficulty: 1 Easy
x x x
Topic: Graphically Summarizing Quantitative Data
x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x
histograms, frequency polygons, and ogives.
x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
9) The cumulative frequency for a class will always be at least as large as the cumulative
x x x x x x x x x x x x x x x
frequency for any class with a smaller upper boundary.
x x x x x x x x x
Answer: TRUE x x
Explanation: This is the number of measurements that are less than the upper boundary of the
x x x x x x x x x x x x x x x
class.
x
Difficulty: 2 Medium x x
Topic: Graphically Summarizing Quantitative Data
x x x x x
Learning Objective: 02-03 Summarize quantitative data using frequency distributions,
x x x x x x x x
histograms, frequency polygons, and ogives.
x x x x x
Bloom's: Remember x
xAACSB: Reflective x
Thinking
x
Accessibility: Keyboard Navigation x x x
3
Copyright 2019 © McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior
x x x x x x x x x x x x x x
written consent of McGraw-Hill Education. x x x x x
mynursytest.store
