Question 1

What does it mean to find the mode of a bar chart?

Accepted Answer

The mode can be found by finding the bar, or category, with the most observations. It will be the highest bar in the plot.

Question 2

The following histogram represents the movie runtimes (length of a movie in minutes) of 489 movies. What is the typical movie runtime according to this distribution?

Accepted Answer

A) The typical value is about 90. 
B) The typical value is about 100. 
C) The typical value is about 120. 
D) The typical value is about 130. 
A) The typical value is about 90. 
B) The typical value is about 100. 
C) The typical value is about 120. 
D) The typical value is about 130. B

Question 3

Which of the following would likely show a bimodal distribution in a histogram?

Accepted Answer

A) The midterm exam scores for an introduction to Spanish course. 
B) The ages of students who attend a local high school. 
C) The number of hours a college student spends on homework per night. 
D) The price of college tuition, including both public and private schools. 
A) The midterm exam scores for an introduction to Spanish course. 
B) The ages of students who attend a local high school. 
C) The number of hours a college student spends on homework per night. 
D) The price of college tuition, including both public and private schools. D

Question 4

Order the following histograms from least to most variability. Explain your reasoning.

Accepted Answer

Least to most variability: (iii), (ii),

Question 5

When examining distributions of numerical data, what three components should you try to describe?

Accepted Answer

Shape, cen

Question 6

The two histograms below display the exact same data. How do the plots differ?

Accepted Answer

Histogram (a) uses frequencies

Question 7

How is a dotplot similar to a histogram? How is it different?

Accepted Answer

A dotplot and a histogram both show the

Question 8

What information is NOT explicitly portrayed in the word cloud?

Accepted Answer

A) The words that occur most frequently in the chapter. 
B) The specific word that occurs most often. 
C) The number of times each word occurs. 
A) The words that occur most frequently in the chapter. 
B) The specific word that occurs most often. 
C) The number of times each word occurs.

Question 9

Order the following histograms from most to least variability.

Accepted Answer

A) (i), (ii), (iii) 
B) (ii), (i), (iii) 
C) (ii), (iii), (i) 
D) (iii), (i), (ii) 
A) (i), (ii), (iii) 
B) (ii), (i), (iii) 
C) (ii), (iii), (i) 
D) (iii), (i), (ii)

Question 10

What is the difference between a bar chart and a histogram?

Accepted Answer

A) A bar chart represents categorical data and a histogram represents numerical data. 
B) A bar chart represents numerical data and a histogram represents categorical data. 
C) They can both be used to represent categorical data. 
D) They can both be used to represent numerical data. 
A) A bar chart represents categorical data and a histogram represents numerical data. 
B) A bar chart represents numerical data and a histogram represents categorical data. 
C) They can both be used to represent categorical data. 
D) They can both be used to represent numerical data.

Question 11

If you were to create a dotplot to display the same data that is represented in the following histogram, how many dots would you draw to represent heights that fall between 1.5 meters and 1.6 meters?

Accepted Answer

About 20 dots should be drawn

Question 12

What does it mean to find the mode of a bar chart?

Accepted Answer

A) You cannot find a mode for categorical data.Modes are only used with numerical data. 
B) The mode can be found by finding the bar, or category, with the most observations. 
C) The mode can be found by adding up the total number of categories. 
D) The mode can be found by adding up the total number of observations and dividing by the number of categories. 
A) You cannot find a mode for categorical data.Modes are only used with numerical data. 
B) The mode can be found by finding the bar, or category, with the most observations. 
C) The mode can be found by adding up the total number of categories. 
D) The mode can be found by adding up the total number of observations and dividing by the number of categories.

Question 13

for following questions , what would you expect the shape of the distribution described to look like? Explain your reasoning.
-The distribution of scores on an easy test.

Accepted Answer

The distribution of scores on

Question 14

for following questions , what would you expect the shape of the distribution described to look like? Explain your reasoning.
-The distribution of the time (in minutes) it takes to drive to work using the same route each day.

Accepted Answer

The distribution of the time it takes to

Question 15

for following questions , match one of the histograms below with its appropriate description.
  
-The distribution of male heights is displayed in histogram .

Accepted Answer

The answer of for following questions , match one of...

Question 16

Use the following information to answer questions 
A large state university conducted a survey among their students and received 300 responses.
The survey asked the students to provide the following information:
* Age
* Year in School (Freshman, Sophomore, Junior, Senior)
* Gender
* GPA
-What type of graph would you use to describe the variables Gender and Year in School?

Accepted Answer

A) A side-by-side histogram should be used since these are two numerical variables. 
B) A side-by-side histogram should be used since these are two categorical variables. 
C) A side-by-side bar chart should be used since these are two numerical variables. 
D) A side-by-side bar chart should be used since these are two categorical variables. 
A) A side-by-side histogram should be used since these are two numerical variables. 
B) A side-by-side histogram should be used since these are two categorical variables. 
C) A side-by-side bar chart should be used since these are two numerical variables. 
D) A side-by-side bar chart should be used since these are two categorical variables.

Question 17

How are individual observations recorded in a dotplot, a histogram, and a stemplot?

Accepted Answer

A) A dotplot displays the actual values of observations.A histogram displays a dot for every observation.A stemplot uses bars to display intervals of observations. 
B) A dotplot displays a dot for every observation.A histogram uses bars to display intervals of observations.A stemplot displays the actual values of observations. 
C) A dotplot displays the actual values of observations.A histogram uses bars to display intervals of observations.A stemplot displays a dot for every observation. 
D) A dotplot uses bars to display intervals of observations.A histogram displays a dot for every observation.A stemplot displays the actual values of observations. 
A) A dotplot displays the actual values of observations.A histogram displays a dot for every observation.A stemplot uses bars to display intervals of observations. 
B) A dotplot displays a dot for every observation.A histogram uses bars to display intervals of observations.A stemplot displays the actual values of observations. 
C) A dotplot displays the actual values of observations.A histogram uses bars to display intervals of observations.A stemplot displays a dot for every observation. 
D) A dotplot uses bars to display intervals of observations.A histogram displays a dot for every observation.A stemplot displays the actual values of observations.

Question 18

Describe a scenario in which a distribution could be bimodal. Explain your reasoning.

Accepted Answer

Answers may vary. Some examples include:

Question 19

The following histogram represents audience movie ratings (on a scale of 1-100) of 489 movies. What is the typical movie rating given by audiences according to this distribution?

Accepted Answer

A) The typical value is about 40. 
B) The typical value is about 50. 
C) The typical value is about 60. 
D) The typical value is about 70. 
A) The typical value is about 40. 
B) The typical value is about 50. 
C) The typical value is about 60. 
D) The typical value is about 70.

Question 20

for following questions , match one of the histograms below with its appropriate description.
  
-The distribution of test scores for a group of students who received a 15-minute study session prior to taking a test is displayed in histogram .

Accepted Answer

The answer of for following questions , match one of...

What does it mean to find the mode of a bar chart?

The following histogram represents the movie runtimes (length of a movie in minutes) of 489 movies. What is the typical movie runtime according to this distribution?

Which of the following would likely show a bimodal distribution in a histogram?

Order the following histograms from least to most variability. Explain your reasoning.

When examining distributions of numerical data, what three components should you try to describe?

The two histograms below display the exact same data. How do the plots differ?

How is a dotplot similar to a histogram? How is it different?

What information is NOT explicitly portrayed in the word cloud?

Order the following histograms from most to least variability.

What is the difference between a bar chart and a histogram?

If you were to create a dotplot to display the same data that is represented in the following histogram, how many dots would you draw to represent heights that fall between 1.5 meters and 1.6 meters?

What does it mean to find the mode of a bar chart?

for following questions , what would you expect the shape of the distribution described to look like? Explain your reasoning. -The distribution of scores on an easy test.

for following questions , what would you expect the shape of the distribution described to look like? Explain your reasoning. -The distribution of the time (in minutes) it takes to drive to work using the same route each day.

for following questions , match one of the histograms below with its appropriate description. -The distribution of male heights is displayed in histogram .

How are individual observations recorded in a dotplot, a histogram, and a stemplot?

Describe a scenario in which a distribution could be bimodal. Explain your reasoning.

The following histogram represents audience movie ratings (on a scale of 1-100) of 489 movies. What is the typical movie rating given by audiences according to this distribution?

for following questions , match one of the histograms below with its appropriate description. -The distribution of test scores for a group of students who received a 15-minute study session prior to taking a test is displayed in histogram .

Introduction to Data

Numerical Summaries of Center and Variation

Regression Analysis: Exploring Associations Between Variables

Modeling Variation With Probability

Modeling Random Events: the Normal and Binomial Models

Survey Sampling and Inference

Hypothesis Testing for Population Proportions

Inferring Population Means

Associations Between Categorical Variables

Multiple Comparisons and Analysis of Variance

Experimental Design: Controlling Variation

Inference Without Normality

Inference for Regression

Filters

Exam 2: Picturing Variation With Graphs

What does it mean to find the mode of a bar chart?

The following histogram represents the movie runtimes (length of a movie in minutes) of 489 movies. What is the typical movie runtime according to this distribution?

Which of the following would likely show a bimodal distribution in a histogram?

Order the following histograms from least to most variability. Explain your reasoning.

When examining distributions of numerical data, what three components should you try to describe?

The two histograms below display the exact same data. How do the plots differ?

How is a dotplot similar to a histogram? How is it different?

What information is NOT explicitly portrayed in the word cloud?

Order the following histograms from most to least variability.

What is the difference between a bar chart and a histogram?

If you were to create a dotplot to display the same data that is represented in the following histogram, how many dots would you draw to represent heights that fall between 1.5 meters and 1.6 meters?

What does it mean to find the mode of a bar chart?

for following questions , what would you expect the shape of the distribution described to look like? Explain your reasoning. -The distribution of scores on an easy test.

for following questions , what would you expect the shape of the distribution described to look like? Explain your reasoning. -The distribution of the time (in minutes) it takes to drive to work using the same route each day.

for following questions , match one of the histograms below with its appropriate description. -The distribution of male heights is displayed in histogram .

How are individual observations recorded in a dotplot, a histogram, and a stemplot?

Describe a scenario in which a distribution could be bimodal. Explain your reasoning.

The following histogram represents audience movie ratings (on a scale of 1-100) of 489 movies. What is the typical movie rating given by audiences according to this distribution?

for following questions , match one of the histograms below with its appropriate description. -The distribution of test scores for a group of students who received a 15-minute study session prior to taking a test is displayed in histogram .

Introduction to Data

Numerical Summaries of Center and Variation

Regression Analysis: Exploring Associations Between Variables

Modeling Variation With Probability

Modeling Random Events: the Normal and Binomial Models

Survey Sampling and Inference

Hypothesis Testing for Population Proportions

Inferring Population Means

Associations Between Categorical Variables

Multiple Comparisons and Analysis of Variance

Experimental Design: Controlling Variation

Inference Without Normality

Inference for Regression

Filters