Question 1

For stem-and-leaf displays where the leaf unit is not stated, the leaf unit is assumed to equal

Accepted Answer

A) 0 
B) .1 
C) 1 
D) 10 
A) 0 
B) .1 
C) 1 
D) 10

Question 2

Fill in the missing value for the following relative frequency distribution.

Accepted Answer

The answer of Fill in the missing value for the...

Question 3

Data that indicate how much or how many are known as

Accepted Answer

A) categorical data 
B) quantitative data 
C) label data 
D) category data 
A) categorical data 
B) quantitative data 
C) label data 
D) category data

Question 4

Which of the following graphical methods is most appropriate for categorical data?

Accepted Answer

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

Question 5

Exhibit 2-3
The number of sick days taken (per month) by 200 factory workers is summarized below.  
-Refer to Exhibit 2-3. The number of workers who took less than 11 sick days per month

Accepted Answer

A) was 15 
B) was 200 
C) was 185 
D) was 65 
A) was 15 
B) was 200 
C) was 185 
D) was 65

Question 6

The following is a summary of the number of hours spent per day watching television for a sample of 100 people. What is wrong with the frequency distribution?

Accepted Answer

The classe

Question 7

A(n) __________ is a graph of a cumulative distribution.

Accepted Answer

A) histogram 
B) pie chart 
C) stem-and-leaf display 
D) ogive 
A) histogram 
B) pie chart 
C) stem-and-leaf display 
D) ogive

Question 8

Exhibit 2-3
The number of sick days taken (per month) by 200 factory workers is summarized below.  
-Refer to Exhibit 2-3. The number of workers who took at least 11 sick days per month

Accepted Answer

A) was 15 
B) was 200 
C) was 185 
D) was 65 
A) was 15 
B) was 200 
C) was 185 
D) was 65

Question 9

In a cumulative relative frequency distribution, the last class will have a cumulative relative frequency equal to

Accepted Answer

A) one 
B) zero 
C) 100 
D) None of the other answers are correct. 
A) one 
B) zero 
C) 100 
D) None of the other answers are correct.

Question 10

There are 800 students in the School of Business Administration. There are four majors in the School: Accounting, Finance, Management, and Marketing. The following shows the number of students in each major.   Develop a percent frequency distribution and construct a bar chart and a pie chart.

Accepted Answer

The answer of There are 800 students in the School...

Question 11

Exhibit 2-3
The number of sick days taken (per month) by 200 factory workers is summarized below.  
-Refer to Exhibit 2-3. The percentage of workers who took 0 - 5 sick days per month was

Accepted Answer

A) 20% 
B) 120% 
C) 75% 
D) 60% 
A) 20% 
B) 120% 
C) 75% 
D) 60%

Question 12

Exhibit 2-1
The numbers of hours worked (per week) by 400 statistics students are shown below.  
-Refer to Exhibit 2-1. The midpoint of the last class is

Accepted Answer

A) 50 
B) 34 
C) 35 
D) 34.5 
A) 50 
B) 34 
C) 35 
D) 34.5

Question 13

Excel's __________ can be used to construct a scatter diagram.

Accepted Answer

A) Chart Tools 
B) SUM function 
C) CROSSTAB function 
D) RAND function 
A) Chart Tools 
B) SUM function 
C) CROSSTAB function 
D) RAND function

Question 14

A __________ can be used to graphically present quantitative data.

Accepted Answer

A) histogram 
B) pie chart 
C) stem-and-leaf display 
D) both a histogram and a stem-and-leaf display are correct 
A) histogram 
B) pie chart 
C) stem-and-leaf display 
D) both a histogram and a stem-and-leaf display are correct

Question 15

The minimum number of variables represented in a bar chart is

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 16

In a cumulative percent frequency distribution, the last class will have a cumulative percent frequency equal to

Accepted Answer

A) one 
B) 100 
C) the total number of elements in the data set 
D) None of the other answers are correct. 
A) one 
B) 100 
C) the total number of elements in the data set 
D) None of the other answers are correct.

Question 17

The relative frequency of a class is computed by

Accepted Answer

A) dividing the midpoint of the class by the sample size. 
B) dividing the frequency of the class by the midpoint. 
C) dividing the sample size by the frequency of the class. 
D) dividing the frequency of the class by the sample size. 
A) dividing the midpoint of the class by the sample size. 
B) dividing the frequency of the class by the midpoint. 
C) dividing the sample size by the frequency of the class. 
D) dividing the frequency of the class by the sample size.

Question 18

Exhibit 2-4
A survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school.  
-Refer to Exhibit 2-4. What percentage of the students' undergraduate major is engineering?

Accepted Answer

A) 292 
B) 520 
C) 65 
D) 36.5 
A) 292 
B) 520 
C) 65 
D) 36.5

Question 19

Exhibit 2-1
The numbers of hours worked (per week) by 400 statistics students are shown below.  
-Refer to Exhibit 2-1. The percentage of students who work at least 10 hours per week is

Accepted Answer

A) 50% 
B) 5% 
C) 95% 
D) 100% 
A) 50% 
B) 5% 
C) 95% 
D) 100%

Question 20

Develop a stretched stem-and-leaf display for the data set below, using a leaf unit of 10.

Accepted Answer

The answer of Develop a stretched stem-and-leaf display for the...

Exam 2: Descriptive Statistics: Tabular and Graphical Displays

For stem-and-leaf displays where the leaf unit is not stated, the leaf unit is assumed to equal

Fill in the missing value for the following relative frequency distribution.

Data that indicate how much or how many are known as

Which of the following graphical methods is most appropriate for categorical data?

Exhibit 2-3 The number of sick days taken (per month) by 200 factory workers is summarized below. -Refer to Exhibit 2-3. The number of workers who took less than 11 sick days per month

The following is a summary of the number of hours spent per day watching television for a sample of 100 people. What is wrong with the frequency distribution?

A(n) __________ is a graph of a cumulative distribution.

Exhibit 2-3 The number of sick days taken (per month) by 200 factory workers is summarized below. -Refer to Exhibit 2-3. The number of workers who took at least 11 sick days per month

In a cumulative relative frequency distribution, the last class will have a cumulative relative frequency equal to

There are 800 students in the School of Business Administration. There are four majors in the School: Accounting, Finance, Management, and Marketing. The following shows the number of students in each major. Develop a percent frequency distribution and construct a bar chart and a pie chart.

Exhibit 2-3 The number of sick days taken (per month) by 200 factory workers is summarized below. -Refer to Exhibit 2-3. The percentage of workers who took 0 - 5 sick days per month was

Exhibit 2-1 The numbers of hours worked (per week) by 400 statistics students are shown below. -Refer to Exhibit 2-1. The midpoint of the last class is

Excel's __________ can be used to construct a scatter diagram.

A __________ can be used to graphically present quantitative data.

The minimum number of variables represented in a bar chart is

In a cumulative percent frequency distribution, the last class will have a cumulative percent frequency equal to

The relative frequency of a class is computed by

Exhibit 2-4 A survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. -Refer to Exhibit 2-4. What percentage of the students' undergraduate major is engineering?

Exhibit 2-1 The numbers of hours worked (per week) by 400 statistics students are shown below. -Refer to Exhibit 2-1. The percentage of students who work at least 10 hours per week is

Develop a stretched stem-and-leaf display for the data set below, using a leaf unit of 10.

Data and Statistics

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Tests of Goodness of Fit, Independence and Multiple Proportions

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Regression Analysis: Model Building

Time Series Analysis and Forecasting

Nonparametric Methods

Statistical Methods for Quality Control

Decision Analysis

Sample Survey

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