Question 1

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown?
​
  ​

Accepted Answer

A)  25% bass, 20% bullhead, 25% catfish, 15% perch, 15% walleye 
B)  35% bass, 15% bullhead, 15% catfish, 15% perch, 20% walleye 
C)  20% bass, 15% bullhead, 25% catfish, 20% perch, 20% walleye 
D)  30% bass, 20% bullhead, 15% catfish, 15% perch, 20% walleye 
A)  25% bass, 20% bullhead, 25% catfish, 15% perch, 15% walleye 
B)  35% bass, 15% bullhead, 15% catfish, 15% perch, 20% walleye 
C)  20% bass, 15% bullhead, 25% catfish, 20% perch, 20% walleye 
D)  30% bass, 20% bullhead, 15% catfish, 15% perch, 20% walleye

Question 2

Which of the following is a good thing to do when designing a data table?

Accepted Answer

A)  Arrange rows according to the numerical value of the most interesting variable. 
B)  Arrange rows alphabetically. 
C)  Arrange rows and columns so that values in the same row are as similar as possible. 
D)  Arrange rows from smallest sample size to largest sample size. 
A)  Arrange rows according to the numerical value of the most interesting variable. 
B)  Arrange rows alphabetically. 
C)  Arrange rows and columns so that values in the same row are as similar as possible. 
D)  Arrange rows from smallest sample size to largest sample size.

Question 3

Consider a situation in which bacterial swabs were taken from the ears and noses of 50 study subjects, and the number of swabs that showed the presence of staphylococcus were measured. The table shows the results of the measurements. Which of the mosaic plots shown correctly depicts this data?
?
Contingency table showing presence of Staphylococcus in swabs from different body parts.

$\begin{array}{lll}
\text { Present? } & \text { Ear } & \text { Nose } \
\hline \text { Yes } & 40 & 28 \
\text { No } & 10 & 22
\end{array}$ ?
  ?

Accepted Answer

A)  Plot A 
B)  Plot B 
C)  Plot C 
D)  Plot D 
A)  Plot A 
B)  Plot B 
C)  Plot C 
D)  Plot D

Question 4

Bar graphs, histograms, and scatter plots should always show the y-axis all the way down to zero.

Accepted Answer

A) True 
 B)False

Question 5

The primary purpose of scatter plots is to highlight differences between groups.

Accepted Answer

A) True 
 B)False

Question 6

Consider the histogram shown. What two words describe the skew?
​
  ​

Accepted Answer

A)  Left skewed, negative skew 
B)  Left skewed, positive skew 
C)  Right skewed, negative skew 
D)  Right skewed, positive skew 
A)  Left skewed, negative skew 
B)  Left skewed, positive skew 
C)  Right skewed, negative skew 
D)  Right skewed, positive skew

Question 7

Consider a situation in which bacterial swabs were taken from the ears and noses of 50 study subjects, and the number of swabs that showed the presence of staphylococcus were measured. The table shows the results of the measurements. Which of the grouped bar graphs shown correctly depicts this data?
?
Contingency table showing presence of Staphylococcus in swabs from different body parts.

$\begin{array}{lll}
\text { Present? } & \text { Ear } & \text { Nose } \
\hline \text { Yes } & 40 & 28 \
\text { No } & 10 & 22
\end{array}$ ?
  ?

Accepted Answer

A)  Plot A 
B)  Plot B 
C)  Plot C 
D)  Plot D 
A)  Plot A 
B)  Plot B 
C)  Plot C 
D)  Plot D

Question 8

Multiple histograms and group bar graphs both use multiple sets of bars to display data and facilitate certain analyses. Contrast these two graphical methods-what is the main difference in the goal of these figures?

Accepted Answer

The main difference between multiple his

Question 9

Bar graphs are typically superior to pie charts for representing category frequencies.

Accepted Answer

A) True 
 B)False

Question 10

Strip plots and violin plots are typically used for the same purpose.

Accepted Answer

A) True 
 B)False

Question 11

Consider a situation in which tumor-prone rats were given an experimental anti-cancer drug or a control. There were 50 rats in each treatment group, and after 6 weeks they were sacrificed and autopsies performed to determine the presence or absence of liver tumors. The table shows the results of the measurements. Which of the mosaic plots shown correctly depicts this data?
?
Contingency table showing presence of tumors in rats with different drug regimes.

$\begin{array}{lll}
\text { Present? } & \text { Control } & \text { Drug } \
\hline \text { Yes } & 29 & 25 \
\text { No } & 21 & 25
\end{array}$ ?
  ?

Accepted Answer

A)  Plot A 
B)  Plot B 
C)  Plot C 
D)  Plot D 
A)  Plot A 
B)  Plot B 
C)  Plot C 
D)  Plot D

Question 12

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown?
​
  ​

Accepted Answer

A)  15% bass, 15% bullhead, 15% catfish, 40% perch, 15% walleye 
B)  15% bass, 15% bullhead, 15% catfish, 35% perch, 20% walleye 
C)  20% bass, 15% bullhead, 20% catfish, 30% perch, 15% walleye 
D)  20% bass, 15% bullhead, 15% catfish, 30% perch, 20% walleye 
A)  15% bass, 15% bullhead, 15% catfish, 40% perch, 15% walleye 
B)  15% bass, 15% bullhead, 15% catfish, 35% perch, 20% walleye 
C)  20% bass, 15% bullhead, 20% catfish, 30% perch, 15% walleye 
D)  20% bass, 15% bullhead, 15% catfish, 30% perch, 20% walleye

Question 13

Consider an experiment in which an omnivorous species has its stomach contents analyzed. Which of the pie charts correctly depicts the following values for the diet of the omnivore:
Fish = 10%
Grass = 40%,
Insects = 20%
Leaves = 30%
​
  ​

Accepted Answer

A)  Chart A 
B)  Chart B 
C)  Chart C 
D)  Chart D 
A)  Chart A 
B)  Chart B 
C)  Chart C 
D)  Chart D

Question 14

There is no strict rule for choosing the number of bins in a histogram.

Accepted Answer

A) True 
 B)False

Question 15

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is NOT an aspect of poor design in the figure shown?
​
  ​

Accepted Answer

A)  The two-dimensional nature of the bars subliminally exaggerates differences between the groups. 
B)  The axis should go to zero to allow true judgement of relative differences. 
C)  The data are shown in a manner that makes judging the values more difficult. 
D)  The unit for mass in the axis label is redundant and makes the label overly wordy. 
A)  The two-dimensional nature of the bars subliminally exaggerates differences between the groups. 
B)  The axis should go to zero to allow true judgement of relative differences. 
C)  The data are shown in a manner that makes judging the values more difficult. 
D)  The unit for mass in the axis label is redundant and makes the label overly wordy.

Question 16

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is an aspect of poor design in the figure shown?
​
  ​

Accepted Answer

A)  The different patterns for the groups provide no additional information because they are redundant with the labels. 
B)  The figure is black and white; color is always better when making figures and graphs. 
C)  The unit for mass in the axis label should be spelled out with words instead of abbreviated within the parentheses. 
D)  Since the minimum group mean is 20, dropping the axis all the way down to zero is too far and wastes space. 
A)  The different patterns for the groups provide no additional information because they are redundant with the labels. 
B)  The figure is black and white; color is always better when making figures and graphs. 
C)  The unit for mass in the axis label should be spelled out with words instead of abbreviated within the parentheses. 
D)  Since the minimum group mean is 20, dropping the axis all the way down to zero is too far and wastes space.

Question 17

Which of the following would greatly improve the utility of the data table shown?
?
Frequency table showing the number of fish caught by a fishing boat during a four hour fishing voyage.

$\begin{array}{cc}
\begin{array}{c}
\
\text { Species } \
\text { of fish }
\end{array} & \begin{array}{c}
\text { Frequency }\
\text { (number } \
\text { caught) }
\end{array} \
\hline \text { Bass } & 10 \
\text { Walleye } & 12 \
\text { Perch } & 7 \
\text { Bullhead } & 11
\end{array}$ ?

Accepted Answer

A)  Instead of a row for each fish species, there should be a column for each species, with the number listed underneath. 
B)  The rows should be sorted alphabetically based on the fish species name. 
C)  The rows should be sorted numerically based on the number of fish caught. 
D)  The scientific names of the fish should be provided on each row. 
A)  Instead of a row for each fish species, there should be a column for each species, with the number listed underneath. 
B)  The rows should be sorted alphabetically based on the fish species name. 
C)  The rows should be sorted numerically based on the number of fish caught. 
D)  The scientific names of the fish should be provided on each row.

Question 18

Consider the data table that indicates how many subjects in a skin cancer study had various sizes of moles on their backs. Which of the histograms correctly depicts the data?
Frequency table showing the average size of moles on 70 subjects.

$\begin{array}{l}

\begin{array}{lc}
\text { Diameter of}&\text {  Number }\
\text { moles }(\mathrm{mm}) & \text { of subjects } \
\hline 0-5 & 15 \
5-10 & 24 \
10-15 & 13 \
15-20 & 9 \
20-25 & 8
\end{array}
\end{array}$   ?
?

Accepted Answer

A)  Chart A 
B)  Chart B 
C)  Chart C 
D)  Chart D 
A)  Chart A 
B)  Chart B 
C)  Chart C 
D)  Chart D

Question 19

Effective graphs are designed to accomplish three goals. Which of the following is NOT one of these goals?

Accepted Answer

A)  Communicating results to a wider audience. 
B)  Comparing measurements between groups. 
C)  Proving a hypothesis is correct or incorrect. 
D)  Uncovering relationships between variables. 
A)  Communicating results to a wider audience. 
B)  Comparing measurements between groups. 
C)  Proving a hypothesis is correct or incorrect. 
D)  Uncovering relationships between variables.

Question 20

Which of the following is generally true for pie charts?

Accepted Answer

A)  Frequencies are easy to compare across different pie charts. 
B)  Frequencies are hard to compare visually when there are many categories. 
C)  Pie charts are better for showing absolute frequencies than relative frequencies. 
D)  Pie charts are better for showing relative frequencies than absolute frequencies. 
A)  Frequencies are easy to compare across different pie charts. 
B)  Frequencies are hard to compare visually when there are many categories. 
C)  Pie charts are better for showing absolute frequencies than relative frequencies. 
D)  Pie charts are better for showing relative frequencies than absolute frequencies.

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown?

Which of the following is a good thing to do when designing a data table?

Bar graphs, histograms, and scatter plots should always show the y-axis all the way down to zero.

The primary purpose of scatter plots is to highlight differences between groups.

Consider the histogram shown. What two words describe the skew?

Multiple histograms and group bar graphs both use multiple sets of bars to display data and facilitate certain analyses. Contrast these two graphical methods-what is the main difference in the goal of these figures?

Bar graphs are typically superior to pie charts for representing category frequencies.

Strip plots and violin plots are typically used for the same purpose.

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown?

Consider an experiment in which an omnivorous species has its stomach contents analyzed. Which of the pie charts correctly depicts the following values for the diet of the omnivore: Fish = 10% Grass = 40%, Insects = 20% Leaves = 30%

There is no strict rule for choosing the number of bins in a histogram.

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is NOT an aspect of poor design in the figure shown?

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is an aspect of poor design in the figure shown?

Which of the following would greatly improve the utility of the data table shown? ? Frequency table showing the number of fish caught by a fishing boat during a four hour fishing voyage. Species of fish Frequency (number caught) Bass 10 Walleye 12 Perch 7 Bullhead 11 ?

Effective graphs are designed to accomplish three goals. Which of the following is NOT one of these goals?

Which of the following is generally true for pie charts?

Statistics and Samples

Describing Data

Estimating With Uncertainty

Probability

Hypothesis Testing

Analyzing Proportions

Fitting Probability Models to Frequency Data

Contingency Analysis: Associations Between

The Normal Distribution

Inference for a Normal Population

Comparing Two Means

Handling Violations of Assumptions

Designing Experiments

Comparing Means of More Than Two Groups

Correlation Between Numerical Variables

Regression

Multiple Explanatory Variables

Computer-Intensive Methods

Likelihood

Meta-Analysis: Combining Information From

Filters

Exam 2: Displaying Data

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown? ​ ​

Which of the following is a good thing to do when designing a data table?

Bar graphs, histograms, and scatter plots should always show the y-axis all the way down to zero.

The primary purpose of scatter plots is to highlight differences between groups.

Consider the histogram shown. What two words describe the skew? ​ ​

Multiple histograms and group bar graphs both use multiple sets of bars to display data and facilitate certain analyses. Contrast these two graphical methods-what is the main difference in the goal of these figures?

Bar graphs are typically superior to pie charts for representing category frequencies.

Strip plots and violin plots are typically used for the same purpose.

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown? ​ ​

Consider an experiment in which an omnivorous species has its stomach contents analyzed. Which of the pie charts correctly depicts the following values for the diet of the omnivore: Fish = 10% Grass = 40%, Insects = 20% Leaves = 30% ​ ​

There is no strict rule for choosing the number of bins in a histogram.

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is NOT an aspect of poor design in the figure shown? ​ ​

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is an aspect of poor design in the figure shown? ​ ​

Which of the following would greatly improve the utility of the data table shown? ? Frequency table showing the number of fish caught by a fishing boat during a four hour fishing voyage. Species of fish Frequency (number caught) Bass 10 Walleye 12 Perch 7 Bullhead 11 ?

Effective graphs are designed to accomplish three goals. Which of the following is NOT one of these goals?

Which of the following is generally true for pie charts?

Statistics and Samples

Describing Data

Estimating With Uncertainty

Probability

Hypothesis Testing

Analyzing Proportions

Fitting Probability Models to Frequency Data

Contingency Analysis: Associations Between

The Normal Distribution

Inference for a Normal Population

Comparing Two Means

Handling Violations of Assumptions

Designing Experiments

Comparing Means of More Than Two Groups

Correlation Between Numerical Variables

Regression

Multiple Explanatory Variables

Computer-Intensive Methods

Likelihood

Meta-Analysis: Combining Information From

Filters

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown?

Consider the histogram shown. What two words describe the skew?

Consider a lake survey in which the relative amounts of five different types of fish are identified. Which of the following data sets matches the pie chart shown?

Consider an experiment in which an omnivorous species has its stomach contents analyzed. Which of the pie charts correctly depicts the following values for the diet of the omnivore: Fish = 10% Grass = 40%, Insects = 20% Leaves = 30%

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is NOT an aspect of poor design in the figure shown?

Consider an experiment in which rats are given three diets (reduced calorie, control, and increased calorie) and their masses at 6 weeks of age are measured. Which of the following is an aspect of poor design in the figure shown?