Question 1

A scatter plot is useful for examining the relationship between two numerical variables.

Accepted Answer

A) True 
 B)False

Question 2

A person has decided to construct a frequency distribution for a set of data containing 60 numbers.The lowest number is 23 and the highest number is 68.If 5 classes are used,the class width should be approximately ___.

Accepted Answer

A) 4 
B) 12 
C) 8 
D) 5 
E) 9 
A) 4 
B) 12 
C) 8 
D) 5 
E) 9

Question 3

Pinky Bauer,Chief Financial Officer of Harrison Haulers,Inc. ,suspects irregularities in the payroll system,and orders an inspection of "each and every payroll voucher issued since January 1,2000." Each payroll voucher was inspected and the following frequency distribution was compiled.  
The midpoint of the first class interval is ___.

Accepted Answer

A) 500 
B) 2 
C) 1.5 
D) 1 
E) 250 
A) 500 
B) 2 
C) 1.5 
D) 1 
E) 250

Question 4

For a company in gardening supplies business,the best graphical way to show the percentage of a total budget that is spent on each of a number of different expense categories is the stem and leaf plot.

Accepted Answer

A) True 
 B)False

Question 5

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows:   The percentage of sales transactions on Saturday that were at least $100 each was ___.

Accepted Answer

A) 100% 
B) 10% 
C) 80% 
D) 20% 
E) 15% 
A) 100% 
B) 10% 
C) 80% 
D) 20% 
E) 15%

Question 6

Consider the following stem and leaf plot:  
Suppose that a frequency distribution was developed from this,and there were 5 classes (10-under 20,20-under 30,etc. ).What is the cumulative frequency for the 30-under 40 class interval?

Accepted Answer

A) 5 
B) 9 
C) 13 
D) 14 
E) 18 
A) 5 
B) 9 
C) 13 
D) 14 
E) 18

Question 7

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003.   Approximately ___ corporations had capitalizations of $200,000,000 or less.

Accepted Answer

A) 50 
B) 100 
C) 700 
D) 800 
E) 900 
A) 50 
B) 100 
C) 700 
D) 800 
E) 900

Question 8

The following represent the ages of students in a class: 19,23,21,19,19,20,22,31,21,20
If a stem and leaf plot were to be developed from this,how many stems would there be?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 5 
E) 10 
A) 2 
B) 3 
C) 4 
D) 5 
E) 10

Question 9

Describe and construct different types of qualitative data graphs,including pie charts,bar charts,and Pareto charts.Explain when these graphs should be used.

Accepted Answer

A pie chart is a circular depiction of d

Question 10

Consider the following frequency distribution:  
What is the relative frequency of the second class interval?

Accepted Answer

A) 0.45 
B) 0.70 
C) 0.30 
D) 0.33 
E) 0.50 
A) 0.45 
B) 0.70 
C) 0.30 
D) 0.33 
E) 0.50

Question 11

Consider the following frequency distribution:  
What is the midpoint of the last class interval?

Accepted Answer

A) 15 
B) 350 
C) 300 
D) 200 
E) 400 
A) 15 
B) 350 
C) 300 
D) 200 
E) 400

Question 12

Consider the relative frequency distribution given below: 
 
There were 60 numbers in the data set.How many of the number were less than 80?

Accepted Answer

A) 90 
B) 80 
C) 0.9 
D) 54 
E) 100 
A) 90 
B) 80 
C) 0.9 
D) 54 
E) 100

Question 13

Consider the relative frequency distribution given below:  
There were 60 numbers in the data set.How many numbers were in the interval 40-under 60?

Accepted Answer

A) 30 
B) 50 
C) 18 
D) 12 
E) 15 
A) 30 
B) 50 
C) 18 
D) 12 
E) 15

Question 14

A scatter plot shows how the numbers in a data set are scattered around their average.

Accepted Answer

A) True 
 B)False

Question 15

A cumulative frequency distribution provides a running total of the frequencies in the classes.

Accepted Answer

A) True 
 B)False

Question 16

If the individual class frequency is divided by the total frequency,the result is the median frequency.

Accepted Answer

A) True 
 B)False

Question 17

The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school:  
Before data was collected,someone questioned the validity of this arrangement.Which of the following represents a problem with this set of intervals?

Accepted Answer

A) There are too many intervals. 
B) The class widths are too small. 
C) Some numbers between 18,000 and 30,000 would fall into two different intervals. 
D) The first and the second interval overlap. 
E) There are too few intervals. 
A) There are too many intervals. 
B) The class widths are too small. 
C) Some numbers between 18,000 and 30,000 would fall into two different intervals. 
D) The first and the second interval overlap. 
E) There are too few intervals.

Question 18

Explain the difference between grouped and ungrouped data and construct a frequency distribution from a set of data and explain what the distribution represents.

Accepted Answer

The two types of data are grouped and un

Question 19

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a frequency histogram of waiting time for walk-in customers.   Approximately ___ walk-in customers waited less than 2 minutes.

Accepted Answer

A) 20 
B) 30 
C) 100 
D) 180 
E) 200 
A) 20 
B) 30 
C) 100 
D) 180 
E) 200

Question 20

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows:   On Friday,the approximate number of sales transactions in the 125-under 150 category was ___.

Accepted Answer

A) 50 
B) 100 
C) 150 
D) 200 
E) 85 
A) 50 
B) 100 
C) 150 
D) 200 
E) 85

A scatter plot is useful for examining the relationship between two numerical variables.

A person has decided to construct a frequency distribution for a set of data containing 60 numbers.The lowest number is 23 and the highest number is 68.If 5 classes are used,the class width should be approximately ___.

For a company in gardening supplies business,the best graphical way to show the percentage of a total budget that is spent on each of a number of different expense categories is the stem and leaf plot.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows: The percentage of sales transactions on Saturday that were at least $100 each was ___.

Consider the following stem and leaf plot: Suppose that a frequency distribution was developed from this,and there were 5 classes (10-under 20,20-under 30,etc. ).What is the cumulative frequency for the 30-under 40 class interval?

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003. Approximately ___ corporations had capitalizations of $200,000,000 or less.

The following represent the ages of students in a class: 19,23,21,19,19,20,22,31,21,20 If a stem and leaf plot were to be developed from this,how many stems would there be?

Describe and construct different types of qualitative data graphs,including pie charts,bar charts,and Pareto charts.Explain when these graphs should be used.

Consider the following frequency distribution: What is the relative frequency of the second class interval?

Consider the following frequency distribution: What is the midpoint of the last class interval?

Consider the relative frequency distribution given below: There were 60 numbers in the data set.How many of the number were less than 80?

Consider the relative frequency distribution given below: There were 60 numbers in the data set.How many numbers were in the interval 40-under 60?

A scatter plot shows how the numbers in a data set are scattered around their average.

A cumulative frequency distribution provides a running total of the frequencies in the classes.

If the individual class frequency is divided by the total frequency,the result is the median frequency.

Explain the difference between grouped and ungrouped data and construct a frequency distribution from a set of data and explain what the distribution represents.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a frequency histogram of waiting time for walk-in customers. Approximately ___ walk-in customers waited less than 2 minutes.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows: On Friday,the approximate number of sales transactions in the 125-under 150 category was ___.

Introduction to Statistics

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters

Exam 2: Charts and Graphs

A scatter plot is useful for examining the relationship between two numerical variables.

A person has decided to construct a frequency distribution for a set of data containing 60 numbers.The lowest number is 23 and the highest number is 68.If 5 classes are used,the class width should be approximately ___.

For a company in gardening supplies business,the best graphical way to show the percentage of a total budget that is spent on each of a number of different expense categories is the stem and leaf plot.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows: The percentage of sales transactions on Saturday that were at least $100 each was ___.

Consider the following stem and leaf plot: Suppose that a frequency distribution was developed from this,and there were 5 classes (10-under 20,20-under 30,etc. ).What is the cumulative frequency for the 30-under 40 class interval?

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003. Approximately ___ corporations had capitalizations of $200,000,000 or less.

The following represent the ages of students in a class: 19,23,21,19,19,20,22,31,21,20 If a stem and leaf plot were to be developed from this,how many stems would there be?

Describe and construct different types of qualitative data graphs,including pie charts,bar charts,and Pareto charts.Explain when these graphs should be used.

Consider the following frequency distribution: What is the relative frequency of the second class interval?

Consider the following frequency distribution: What is the midpoint of the last class interval?

Consider the relative frequency distribution given below: There were 60 numbers in the data set.How many of the number were less than 80?

Consider the relative frequency distribution given below: There were 60 numbers in the data set.How many numbers were in the interval 40-under 60?

A scatter plot shows how the numbers in a data set are scattered around their average.

A cumulative frequency distribution provides a running total of the frequencies in the classes.

If the individual class frequency is divided by the total frequency,the result is the median frequency.

Explain the difference between grouped and ungrouped data and construct a frequency distribution from a set of data and explain what the distribution represents.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a frequency histogram of waiting time for walk-in customers. Approximately ___ walk-in customers waited less than 2 minutes.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows: On Friday,the approximate number of sales transactions in the 125-under 150 category was ___.

Introduction to Statistics

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters