Question 1

The relationship between two interval variables is graphically displayed by a

Accepted Answer

A)  scatter diagram 
B)  histogram 
C)  bar chart 
D)  pie chart 
A)  scatter diagram 
B)  histogram 
C)  bar chart 
D)  pie chart

Question 2

Test scores
The scores on a calculus test for a random sample of 40 students are as follows:
  
-{Test Grades Narrative} Construct a stem-and-leaf display for this data set.Describe the shape of the data.

Accepted Answer

@#IMG-DLM& The data is relativ

Question 3

A graph of the frequency distribution for interval data is called a(n) ____________________.

Accepted Answer

The answer of A graph of the frequency distribution for...

Question 4

A(n) ____________________ is best defined as a set of symbols (such as people or animals) used to depict data.It often distorts the actual sizes of the items being portrayed.

Accepted Answer

The answer of A(n) ____________________ is best defined as a...

Question 5

The techniques of shrinking the horizontal axis or stretching the vertical axis have the effect of making the slope of the graph visually (but not numerically) steeper.

Accepted Answer

A) True 
 B)False

Question 6

Fifty two truck buyers were asked to indicate the car dealer they believed offered the best overall service.The four choices were A, B, C, and D as shown below:
   Construct a table showing the frequencies and relative frequencies for this data set.What proportion of car buyers rated dealer D as the best?

Accepted Answer

@#IMG-DLM& 0.173 of the truck

Question 7

Insurance Company
A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results:
  
-{Insurance Company Narrative} How many total claims are represented in the sample?

Accepted Answer

(0* 9) + (1 * 20) +

Question 8

A relative frequency distribution describes the proportion of data values that fall within each category.

Accepted Answer

A) True 
 B)False

Question 9

Insurance Company
A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results:
  
-{Insurance Company Narrative} What number of claims was made by the highest proportion of homeowners?

Accepted Answer

20/64 = 31% of the h

Question 10

A histogram is said to be ____________________ if, when we draw a vertical line down the center of the histogram, the two sides are identical in shape and size.

Accepted Answer

symmetric

Question 11

A modal class is the class with the largest number of observations.

Accepted Answer

A) True 
 B)False

Question 12

Compare the spread of the two histograms below.Which of the following is true?

Accepted Answer

A)  Data Set A has a larger spread than Data Set B. 
B)  Data Set A has a smaller spread than Data Set B. 
C)  Data Set A has the same spread as Data Set B. 
D)  You cannot compare the spreads of these histograms without the original data. 
A)  Data Set A has a larger spread than Data Set B. 
B)  Data Set A has a smaller spread than Data Set B. 
C)  Data Set A has the same spread as Data Set B. 
D)  You cannot compare the spreads of these histograms without the original data.

Question 13

Explain the difference between a histogram and a line chart.

Accepted Answer

A histogram is a dis

Question 14

Which of the following is true about a stem-and-leaf display?

Accepted Answer

A)  You can recreate the original data set from it. 
B)  Its shape resembles a histogram turned on its side. 
C)  It provides an organized way to depict interval data. 
D)  All of these choices are true. 
A)  You can recreate the original data set from it. 
B)  Its shape resembles a histogram turned on its side. 
C)  It provides an organized way to depict interval data. 
D)  All of these choices are true.

Question 15

Insurance Company
A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results:
  
-{Insurance Company Narrative} How many homeowners are represented in the sample?

Accepted Answer

9 + 20 + 1

Question 16

Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital.The same data set is displayed in each of the three histograms below.      
-{Home Care Narrative}Which graph do you think is the most appropriate display? Justify your answer.

Accepted Answer

Histogram 1 seems to give the

Question 17

Which of the following statements describe(s) the line chart below?

Accepted Answer

A)  November experienced the lowest sales throughout the year. 
B)  August experienced the highest sales throughout the year. 
C)  Sales did not fluctuate more than 30 units on either side of 90. 
D)  All of these choices are true. 
A)  November experienced the lowest sales throughout the year. 
B)  August experienced the highest sales throughout the year. 
C)  Sales did not fluctuate more than 30 units on either side of 90. 
D)  All of these choices are true.

Question 18

Observations that are taken during successive points in time are called ____________________ data.

Accepted Answer

time-serie

Question 19

Test scores
The scores on a calculus test for a random sample of 40 students are as follows:
  
-{Test Grades Narrative} Describe the distribution of exam scores.

Accepted Answer

The distribution of the data i

Question 20

The number of crimes per capita is known as the crime ____________________.It is a fairer way to represent and compare crimes from year to year or place to place.

Accepted Answer

The answer of The number of crimes per capita is...

The relationship between two interval variables is graphically displayed by a

Test scores The scores on a calculus test for a random sample of 40 students are as follows: -{Test Grades Narrative} Construct a stem-and-leaf display for this data set.Describe the shape of the data.

A graph of the frequency distribution for interval data is called a(n) ____________________.

A(n) ____________________ is best defined as a set of symbols (such as people or animals) used to depict data.It often distorts the actual sizes of the items being portrayed.

The techniques of shrinking the horizontal axis or stretching the vertical axis have the effect of making the slope of the graph visually (but not numerically) steeper.

Insurance Company A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results: -{Insurance Company Narrative} How many total claims are represented in the sample?

A relative frequency distribution describes the proportion of data values that fall within each category.

A histogram is said to be ____________________ if, when we draw a vertical line down the center of the histogram, the two sides are identical in shape and size.

A modal class is the class with the largest number of observations.

Compare the spread of the two histograms below.Which of the following is true?

Explain the difference between a histogram and a line chart.

Which of the following is true about a stem-and-leaf display?

Insurance Company A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results: -{Insurance Company Narrative} How many homeowners are represented in the sample?

Home Care Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital.The same data set is displayed in each of the three histograms below. -{Home Care Narrative}Which graph do you think is the most appropriate display? Justify your answer.

Which of the following statements describe(s) the line chart below?

Observations that are taken during successive points in time are called ____________________ data.

Test scores The scores on a calculus test for a random sample of 40 students are as follows: -{Test Grades Narrative} Describe the distribution of exam scores.

The number of crimes per capita is known as the crime ____________________.It is a fairer way to represent and compare crimes from year to year or place to place.

What Is Statistics

Graphical Descriptive Techniques I

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Filters

Exam 3: Graphical Descriptive Techniques II

The relationship between two interval variables is graphically displayed by a

Test scores The scores on a calculus test for a random sample of 40 students are as follows: -{Test Grades Narrative} Construct a stem-and-leaf display for this data set.Describe the shape of the data.

A graph of the frequency distribution for interval data is called a(n) ____________________.

A(n) ____________________ is best defined as a set of symbols (such as people or animals) used to depict data.It often distorts the actual sizes of the items being portrayed.

The techniques of shrinking the horizontal axis or stretching the vertical axis have the effect of making the slope of the graph visually (but not numerically) steeper.

Insurance Company A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results: -{Insurance Company Narrative} How many total claims are represented in the sample?

A relative frequency distribution describes the proportion of data values that fall within each category.

A histogram is said to be ____________________ if, when we draw a vertical line down the center of the histogram, the two sides are identical in shape and size.

A modal class is the class with the largest number of observations.

Compare the spread of the two histograms below.Which of the following is true?

Explain the difference between a histogram and a line chart.

Which of the following is true about a stem-and-leaf display?

Insurance Company A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results: -{Insurance Company Narrative} How many homeowners are represented in the sample?

Home Care Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital.The same data set is displayed in each of the three histograms below. -{Home Care Narrative}Which graph do you think is the most appropriate display? Justify your answer.

Which of the following statements describe(s) the line chart below?

Observations that are taken during successive points in time are called ____________________ data.

Test scores The scores on a calculus test for a random sample of 40 students are as follows: -{Test Grades Narrative} Describe the distribution of exam scores.

The number of crimes per capita is known as the crime ____________________.It is a fairer way to represent and compare crimes from year to year or place to place.

What Is Statistics

Graphical Descriptive Techniques I

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Filters