Question 1

To calculate a relative frequency, a class frequency is divided by ____________.

Accepted Answer

total numb

Question 2

The relative frequency for a class is computed as the class

Accepted Answer

A)  width divided by class interval. 
B)  midpoint divided by the class frequency. 
C)  frequency divided by the class interval. 
D)  frequency divided by the total frequency. 
A)  width divided by class interval. 
B)  midpoint divided by the class frequency. 
C)  frequency divided by the class interval. 
D)  frequency divided by the total frequency.

Question 3

Refer to the following breakdown of responses to a survey of room cleanliness in a hotel.   Draw a bar graph that illustrates the frequency table above.

Accepted Answer

Graph with appropriate labels on horizon

Question 4

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?   What type of chart should be used to show relative class frequencies?

Accepted Answer

A)  Pie chart 
B)  Bar chart 
C)  Histogram 
D)  Frequency Polygon 
A)  Pie chart 
B)  Bar chart 
C)  Histogram 
D)  Frequency Polygon

Question 5

To convert a frequency distribution to a relative frequency distribution, divide each class frequency by the sum of the class frequencies.

Accepted Answer

A) True 
 B)False

Question 6

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"?   What is the class with the greatest frequency?

Accepted Answer

A)  Very concerned 
B)  Somewhat concerned 
C)  No concern 
D)  None of the above 
A)  Very concerned 
B)  Somewhat concerned 
C)  No concern 
D)  None of the above

Question 7

A student was studying the political party preferences of a university's student population. The survey instrument asked students to identify their political preference, for example, democrat, republican, libertarian, or other party. The best way to illustrate the relative frequency distribution is a:

Accepted Answer

A)  Bar chart. 
B)  Pie chart. 
C)  Histogram. 
D)  Frequency polygon. 
A)  Bar chart. 
B)  Pie chart. 
C)  Histogram. 
D)  Frequency polygon.

Question 8

A frequency distribution groups data into classes showing the number of observations in each class.

Accepted Answer

A) True 
 B)False

Question 9

What is the difference in application between a bar chart and a pie chart?

Accepted Answer

A bar chart shows the frequency for the

Question 10

What is the suggested class interval for a frequency distribution if the data ranges from 100 to 220 with 50 observations? ____________________

Accepted Answer

The answer of What is the suggested class interval for...

Question 11

A sample distribution of hourly earnings in Paul's Cookie Factory is:   The limits of the class with the smallest frequency are:

Accepted Answer

A)  $6.00 and $9.00 
B)  $12.00 and up to $14.00 
C)  $11.75 and $14.25 
D)  $12.00 and up to $15.00 
A)  $6.00 and $9.00 
B)  $12.00 and up to $14.00 
C)  $11.75 and $14.25 
D)  $12.00 and up to $15.00

Question 12

Refer to the following breakdown of responses to a survey of room service in a hotel.   What is the class with the greatest frequency?

Accepted Answer

A)  Not satisfied 
B)  Satisfied 
C)  Highly satisfied 
D)  None of the above 
A)  Not satisfied 
B)  Satisfied 
C)  Highly satisfied 
D)  None of the above

Question 13

Refer to the following distribution:   What is the relative class frequency for the $25 up to $35 class?

Accepted Answer

A)  .02 
B)  .04 
C)  .05 
D)  .10 
A)  .02 
B)  .04 
C)  .05 
D)  .10

Question 14

When classes in a frequency table are constructed so that each observation will fit into only one class, the categories are ________________________.

Accepted Answer

The answer of When classes in a frequency table are...

Question 15

A pie chart shows the relative frequency in each class.

Accepted Answer

A) True 
 B)False

Question 16

The midpoint of a class, which is also called a class mark, is halfway between the lower and upper limits.

Accepted Answer

A) True 
 B)False

Question 17

Refer to the following wage breakdown for a garment factory.   What is the class midpoint for the class with the greatest frequency?

Accepted Answer

A)  $5.50 
B)  $8.50 
C)  $11.50 
D)  $14.50 
A)  $5.50 
B)  $8.50 
C)  $11.50 
D)  $14.50

Question 18

Why are unequal class intervals sometimes used in a frequency distribution?

Accepted Answer

A)  To avoid a large number of empty classes 
B)  For the sake of variety in presenting the data 
C)  To make the class frequencies smaller 
D)  To avoid the need for midpoints 
A)  To avoid a large number of empty classes 
B)  For the sake of variety in presenting the data 
C)  To make the class frequencies smaller 
D)  To avoid the need for midpoints

Question 19

A student was studying the political party preferences of a university's student population. The survey instrument asked students to identify their political preference, for example, democrat, republican, libertarian, or other party. The best way to illustrate the frequencies for each political preference is a:

Accepted Answer

A)  Bar chart. 
B)  Pie chart. 
C)  Histogram. 
D)  Frequency polygon. 
A)  Bar chart. 
B)  Pie chart. 
C)  Histogram. 
D)  Frequency polygon.

Question 20

A group of 100 students were surveyed about their interest in a new Economics major. Interest was measured in terms of high, medium, or low. 30 students responded high interest; 50 students responded medium interest; 20 students responded low interest. What is the best way to illustrate the relative frequency of student interest?
A. Cumulative frequency polygon
B. Bar chart
C. Pie chart
D. Frequency table

Accepted Answer

The answer of A group of 100 students were surveyed...

To calculate a relative frequency, a class frequency is divided by ____________.

The relative frequency for a class is computed as the class

Refer to the following breakdown of responses to a survey of room cleanliness in a hotel. Draw a bar graph that illustrates the frequency table above.

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What type of chart should be used to show relative class frequencies?

To convert a frequency distribution to a relative frequency distribution, divide each class frequency by the sum of the class frequencies.

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What is the class with the greatest frequency?

A frequency distribution groups data into classes showing the number of observations in each class.

What is the difference in application between a bar chart and a pie chart?

What is the suggested class interval for a frequency distribution if the data ranges from 100 to 220 with 50 observations? ____________________

A sample distribution of hourly earnings in Paul's Cookie Factory is: The limits of the class with the smallest frequency are:

Refer to the following breakdown of responses to a survey of room service in a hotel. What is the class with the greatest frequency?

Refer to the following distribution: What is the relative class frequency for the $25 up to $35 class?

When classes in a frequency table are constructed so that each observation will fit into only one class, the categories are ________________________.

A pie chart shows the relative frequency in each class.

The midpoint of a class, which is also called a class mark, is halfway between the lower and upper limits.

Refer to the following wage breakdown for a garment factory. What is the class midpoint for the class with the greatest frequency?

Why are unequal class intervals sometimes used in a frequency distribution?

What Is Statistics

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 2: Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

To calculate a relative frequency, a class frequency is divided by ____________.

The relative frequency for a class is computed as the class

Refer to the following breakdown of responses to a survey of room cleanliness in a hotel. Draw a bar graph that illustrates the frequency table above.

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What type of chart should be used to show relative class frequencies?

To convert a frequency distribution to a relative frequency distribution, divide each class frequency by the sum of the class frequencies.

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet"? What is the class with the greatest frequency?

A frequency distribution groups data into classes showing the number of observations in each class.

What is the difference in application between a bar chart and a pie chart?

What is the suggested class interval for a frequency distribution if the data ranges from 100 to 220 with 50 observations? ____________________

A sample distribution of hourly earnings in Paul's Cookie Factory is: The limits of the class with the smallest frequency are:

Refer to the following breakdown of responses to a survey of room service in a hotel. What is the class with the greatest frequency?

Refer to the following distribution: What is the relative class frequency for the $25 up to $35 class?

When classes in a frequency table are constructed so that each observation will fit into only one class, the categories are ________________________.

A pie chart shows the relative frequency in each class.

The midpoint of a class, which is also called a class mark, is halfway between the lower and upper limits.

Refer to the following wage breakdown for a garment factory. What is the class midpoint for the class with the greatest frequency?

Why are unequal class intervals sometimes used in a frequency distribution?

What Is Statistics

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters