Question 1

Given two class intervals and their respective frequencies and relative frequencies,the ratio of the frequencies _________ the ratio of the relative frequencies.

Accepted Answer

A)  is less than 
B)  is the same as 
C)  is larger than 
D)  could be less, equal, or larger than 
E)  less than or equal to 
A)  is less than 
B)  is the same as 
C)  is larger than 
D)  could be less, equal, or larger than 
E)  less than or equal to B

Question 2

The following graphic of residential housing data (selling price and size in square feet)indicates _____________.

Accepted Answer

A)  an inverse relation between the two variables 
B)  no relation between the two variables 
C)  a direct relation between the two variables 
D)  a negative exponential relation between the two variables 
E)  a sinusoidal relationship between the two variables 
A)  an inverse relation between the two variables 
B)  no relation between the two variables 
C)  a direct relation between the two variables 
D)  a negative exponential relation between the two variables 
E)  a sinusoidal relationship between the two variables C

Question 3

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

Accepted Answer

A) True 
 B)False  False

Question 4

A recent survey of U.S.automobile owners showed the following preferences for exterior automobile colors:   What type of graph is used to depict exterior automobile color preferences?

Accepted Answer

A) Frequency polygon 
B) Pareto chart 
C) Bar graph 
D) Ogive 
E) Histogram 
A) Frequency polygon 
B) Pareto chart 
C) Bar graph 
D) Ogive 
E) Histogram

Question 5

Scott Brim,Chief Financial Officer of Space Mall,Inc.,wants to better understand the busiest business hours during the weekend.There are door sensors that approximately count the number of people who enter the mall.The table below presents the average number of people coming in during the weekend,for the last month:   The relative frequency of the fourth class interval is _________.

Accepted Answer

A)  0.07 
B)  0.08 
C)  0.14 
D)  0.15 
E)  0.38 
A)  0.07 
B)  0.08 
C)  0.14 
D)  0.15 
E)  0.38

Question 6

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

Accepted Answer

A) True 
 B)False

Question 7

Your company is doing market research to assess the feasibility of a new product.The market research team gathers pricing information of all the existing products that would compete with your company's product.The most expensive brand is priced at $22.95,and the least expensive one at $20.59.If a class width of 0.25 is used,then the number of classes will be

Accepted Answer

A)  9 
B)  9.4 
C)  undetermined, so you can choose either 9 or 10 
D)  undetermined, so you must choose another class width 
E)  10 
A)  9 
B)  9.4 
C)  undetermined, so you can choose either 9 or 10 
D)  undetermined, so you must choose another class width 
E)  10

Question 8

Consider the relative frequency distribution given below:   There were 60 numbers in the data set. How many numbers were in the interval 20-under 40?

Accepted Answer

A)  12 
B)  20 
C)  40 
D)  10 
E)  15 
A)  12 
B)  20 
C)  40 
D)  10 
E)  15

Question 9

In contrast to quantitative data graphs that are plotted along a numerical scale,qualitative graphs are plotted using non-numerical categories.

Accepted Answer

A) True 
 B)False

Question 10

Dot Plots are mainly used to display a large data set.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The number of phone calls arriving at a switchboard each hour has been recorded,and the following frequency distribution has been developed.

Accepted Answer

A)  80 
B)  100 
C)  95 
D)  90 
E)  85 
A)  80 
B)  100 
C)  95 
D)  90 
E)  85

Question 13

An instructor made a frequency table of the scores his students got on a test   The midpoint of the last class interval is _________.

Accepted Answer

A)  90 
B)  5 
C)  95 
D)  100 
E)  50 
A)  90 
B)  5 
C)  95 
D)  100 
E)  50

Question 14

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 15

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 2013.   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 16

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

Accepted Answer

A) True 
 B)False

Question 17

A histogram can be described as a type of vertical bar chart.

Accepted Answer

A) True 
 B)False

Question 18

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 19

Your company is doing market research to assess the feasibility of a new product.The market research team gathers pricing information of the 60 existing products in the market that would compete with your company's product.The most expensive brand is priced at $22.95,and the least expensive one at $20.59.If the relative frequency of the first class is 0.05 and the cumulative frequency for the second class is 10,then the relative frequency for the second class is

Accepted Answer

A)  0.05 
B)  0.11 
C)  0.12 
D)  0.17 
E)  1.67 
A)  0.05 
B)  0.11 
C)  0.12 
D)  0.17 
E)  1.67

Question 20

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

Accepted Answer

A)  25 
B)  45 
C)  70 
D)  100 
E)  250 
A)  25 
B)  45 
C)  70 
D)  100 
E)  250

Given two class intervals and their respective frequencies and relative frequencies,the ratio of the frequencies _________ the ratio of the relative frequencies.

The following graphic of residential housing data (selling price and size in square feet)indicates _____________.

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

A recent survey of U.S.automobile owners showed the following preferences for exterior automobile colors: What type of graph is used to depict exterior automobile color preferences?

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

Consider the relative frequency distribution given below: There were 60 numbers in the data set. How many numbers were in the interval 20-under 40?

In contrast to quantitative data graphs that are plotted along a numerical scale,qualitative graphs are plotted using non-numerical categories.

Dot Plots are mainly used to display a large data set.

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

The number of phone calls arriving at a switchboard each hour has been recorded,and the following frequency distribution has been developed.

An instructor made a frequency table of the scores his students got on a test The midpoint of the last class interval is _________.

Consider the following frequency distribution: What is the midpoint of the last 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 2013. Approximately ________ corporations had capitalizations of $200,000,000 or less.

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

A histogram can be described as a type of vertical bar chart.

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

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

A Nalysis 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

Given two class intervals and their respective frequencies and relative frequencies,the ratio of the frequencies _________ the ratio of the relative frequencies.

The following graphic of residential housing data (selling price and size in square feet)indicates _____________.

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

A recent survey of U.S.automobile owners showed the following preferences for exterior automobile colors: What type of graph is used to depict exterior automobile color preferences?

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

Consider the relative frequency distribution given below: There were 60 numbers in the data set. How many numbers were in the interval 20-under 40?

In contrast to quantitative data graphs that are plotted along a numerical scale,qualitative graphs are plotted using non-numerical categories.

Dot Plots are mainly used to display a large data set.

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

The number of phone calls arriving at a switchboard each hour has been recorded,and the following frequency distribution has been developed.

An instructor made a frequency table of the scores his students got on a test The midpoint of the last class interval is _________.

Consider the following frequency distribution: What is the midpoint of the last 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 2013. Approximately ________ corporations had capitalizations of $200,000,000 or less.

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

A histogram can be described as a type of vertical bar chart.

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

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

A Nalysis 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