Question 1

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive.

Accepted Answer

A) True 
 B)False

Question 2

A bar chart possesses which of the following?

Accepted Answer

A)  Capability of displaying the distribution for a quantitative variable 
B)  The option of displaying the data in scatter diagram form 
C)  The option for displaying two or more variables on the same chart 
D)  An easy method for displaying the general shape of a continuous variable 
A)  Capability of displaying the distribution for a quantitative variable 
B)  The option of displaying the data in scatter diagram form 
C)  The option for displaying two or more variables on the same chart 
D)  An easy method for displaying the general shape of a continuous variable

Question 3

Suppose that you have a data set of 512 observations and the data values range from 36 to 187. What classes would you choose for this data set? Explain why you would choose these values.

Accepted Answer

For n=512 values, 9 classes would be abo

Question 4

Two separate frequency distributions for two variables provide the same information as one joint frequency distribution involving the same two variables.

Accepted Answer

A) True 
 B)False

Question 5

Frequency distributions can be formed from which of the following types of data?

Accepted Answer

A)  Both discrete and continuous 
B)  Discrete only 
C)  Continuous only 
D)  Only qualitative data 
A)  Both discrete and continuous 
B)  Discrete only 
C)  Continuous only 
D)  Only qualitative data

Question 6

When developing a bar chart, it is usually preferable to organize the bars in order from high to low.

Accepted Answer

A) True 
 B)False

Question 7

There is no difference between cumulative frequency and relative frequency.

Accepted Answer

A) True 
 B)False

Question 8

A tire store manager has collected data showing the number of tires of each brand sold during the past month. A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

Accepted Answer

A) True 
 B)False

Question 9

One of the key differences between a bar chart and histogram is:

Accepted Answer

A)  the histogram contains gaps between the bars and the bar chart does not. 
B)  a bar chart is used to display a categorical variable and a histogram is used to display the distribution of a quantitative variable. 
C)  the histogram shows relative frequency while the bar chart shows frequency. 
D)  the bar chart must be vertical while the histogram must be horizontal. 
A)  the histogram contains gaps between the bars and the bar chart does not. 
B)  a bar chart is used to display a categorical variable and a histogram is used to display the distribution of a quantitative variable. 
C)  the histogram shows relative frequency while the bar chart shows frequency. 
D)  the bar chart must be vertical while the histogram must be horizontal.

Question 10

It is often a good idea to convert frequency distributions to relative frequency distributions when you wish to compare two distributions with different amounts of data.

Accepted Answer

A) True 
 B)False

Question 11

Sawyer & Company is a law firm in Dallas, Texas. Recently, the administrative manager prepared a report for the managing partners that showed the number of court cases handled by the firm monthly over the past three years. One of the objectives of graphing these data might have been to identify a trend in the number of court cases.

Accepted Answer

A) True 
 B)False

Question 12

In a recent study at First National Bank, a frequency count was made for the variable marital status for the bank's 10,000 customers. It would also be appropriate to develop a histogram for this variable to show how marital status is distributed.

Accepted Answer

A) True 
 B)False

Question 13

Recently a study of fans attending the New York Mets baseball games was conducted and 500 fans were surveyed. In forming a frequency distribution of the number of miles fans traveled from home to the stadium, it was found that 247 fans traveled between 0 and 5 miles. Based on this information what was the relative frequency for this class?

Accepted Answer

A)  0.247 
B)  0.30 
C)  0.494 
D)  Can't be determined without more information. 
A)  0.247 
B)  0.30 
C)  0.494 
D)  Can't be determined without more information.

Question 14

The Wilson company monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a histogram.

Accepted Answer

A) True 
 B)False

Question 15

One of the advantages that a stem and leaf diagram has over a histogram is:

Accepted Answer

A)  the detail of the data is preserved. 
B)  it shows the general distribution of a quantitative variable. 
C)  it can be used with nominal data. 
D)  There are no advantages. 
A)  the detail of the data is preserved. 
B)  it shows the general distribution of a quantitative variable. 
C)  it can be used with nominal data. 
D)  There are no advantages.

Question 16

Once you have determined the class width using the formula, high-low divided by the number of classes, it is appropriate to round to the nearest integer to make the analysis easier.

Accepted Answer

A) True 
 B)False

Question 17

In a recent study of retail daily sales by stores at a mall in Kansas, the minimum daily sales was $700 and the maximum was $51,000. If you wish to construct a frequency distribution with 10 classes, the minimum class width would be $5,100.

Accepted Answer

A) True 
 B)False

Question 18

A recent study of students at the university contained data on year in school and student age. An appropriate tool for analyzing the relationship between these two variables would be a joint frequency distribution.

Accepted Answer

A) True 
 B)False

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive.

A bar chart possesses which of the following?

Suppose that you have a data set of 512 observations and the data values range from 36 to 187. What classes would you choose for this data set? Explain why you would choose these values.

Two separate frequency distributions for two variables provide the same information as one joint frequency distribution involving the same two variables.

Frequency distributions can be formed from which of the following types of data?

When developing a bar chart, it is usually preferable to organize the bars in order from high to low.

There is no difference between cumulative frequency and relative frequency.

A tire store manager has collected data showing the number of tires of each brand sold during the past month. A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

One of the key differences between a bar chart and histogram is:

It is often a good idea to convert frequency distributions to relative frequency distributions when you wish to compare two distributions with different amounts of data.

In a recent study at First National Bank, a frequency count was made for the variable marital status for the bank's 10,000 customers. It would also be appropriate to develop a histogram for this variable to show how marital status is distributed.

The Wilson company monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a histogram.

One of the advantages that a stem and leaf diagram has over a histogram is:

Once you have determined the class width using the formula, high-low divided by the number of classes, it is appropriate to round to the nearest integer to make the analysis easier.

In a recent study of retail daily sales by stores at a mall in Kansas, the minimum daily sales was $700 and the maximum was $51,000. If you wish to construct a frequency distribution with 10 classes, the minimum class width would be $5,100.

A recent study of students at the university contained data on year in school and student age. An appropriate tool for analyzing the relationship between these two variables would be a joint frequency distribution.

The Where, Why, and How of Data Collection

Describing Data Using Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Goodness-Of-Fit Tests and Contingency Analysis

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introducing Business Analytics

Introduction to Decision Analysis

Introduction to Quality and Statistical Process Control

Filters

Exam 2: Graphs, Charts and Tablesdescribing Your Data

If you wish to construct a graph of a relative frequency distribution, you would most likely construct an ogive.

A bar chart possesses which of the following?

Suppose that you have a data set of 512 observations and the data values range from 36 to 187. What classes would you choose for this data set? Explain why you would choose these values.

Two separate frequency distributions for two variables provide the same information as one joint frequency distribution involving the same two variables.

Frequency distributions can be formed from which of the following types of data?

When developing a bar chart, it is usually preferable to organize the bars in order from high to low.

There is no difference between cumulative frequency and relative frequency.

A tire store manager has collected data showing the number of tires of each brand sold during the past month. A bar chart might be effective in graphically illustrating which brands tend to sell best at this store.

One of the key differences between a bar chart and histogram is:

It is often a good idea to convert frequency distributions to relative frequency distributions when you wish to compare two distributions with different amounts of data.

In a recent study at First National Bank, a frequency count was made for the variable marital status for the bank's 10,000 customers. It would also be appropriate to develop a histogram for this variable to show how marital status is distributed.

The Wilson company monitors customer complaints and organizes these complaints into six distinct categories. Over the past year, the company has received 534 complaints. One possible graphical method for representing these data would be a histogram.

One of the advantages that a stem and leaf diagram has over a histogram is:

Once you have determined the class width using the formula, high-low divided by the number of classes, it is appropriate to round to the nearest integer to make the analysis easier.

In a recent study of retail daily sales by stores at a mall in Kansas, the minimum daily sales was $700 and the maximum was $51,000. If you wish to construct a frequency distribution with 10 classes, the minimum class width would be $5,100.

A recent study of students at the university contained data on year in school and student age. An appropriate tool for analyzing the relationship between these two variables would be a joint frequency distribution.

The Where, Why, and How of Data Collection

Describing Data Using Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Goodness-Of-Fit Tests and Contingency Analysis

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introducing Business Analytics

Introduction to Decision Analysis

Introduction to Quality and Statistical Process Control

Filters