Question 1

Which of the following variables uses the ratio scale of measurement?

Accepted Answer

A)  name of stock exchange 
B)  time 
C)  SAT scores 
D)  social security number 
A)  name of stock exchange 
B)  time 
C)  SAT scores 
D)  social security number

Question 2

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio 
A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio

Question 3

When the data have the properties of interval data and the multiplication or division of two values is meaningful, the variable has which scale of measurement?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio 
A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio

Question 4

A sample of five Fortune 500 companies showed the following revenues ($ millions): 7505.0, 2904.7, 7208.4, 6819.0, and 19500.0.Based on this information, which of the following statements is correct?

Accepted Answer

A)  An estimate of the average revenue for all Fortune 500 companies is 8787.42 ($ millions). 
B)  The average revenue for all Fortune 500 companies is 8787.42 ($ millions). 
C)  Over half of all Fortune 500 companies earn at least 7208.4 ($ millions) in revenues. 
D)  If five other Fortune 500 companies were chosen, the average revenue would be 8787.42 ($ millions). 
A)  An estimate of the average revenue for all Fortune 500 companies is 8787.42 ($ millions). 
B)  The average revenue for all Fortune 500 companies is 8787.42 ($ millions). 
C)  Over half of all Fortune 500 companies earn at least 7208.4 ($ millions) in revenues. 
D)  If five other Fortune 500 companies were chosen, the average revenue would be 8787.42 ($ millions).

Question 5

The graph below best exemplifies a _____. ​

Accepted Answer

A)  bar graph 
B)  time series graph 
C)  cross-sectional graph 
D)  line graph 
A)  bar graph 
B)  time series graph 
C)  cross-sectional graph 
D)  line graph

Question 6

Quantitative data that measure "how many" are ________; quantitative data that measure "how much" are ________.

Accepted Answer

A)  interval; ratio 
B)  ratio; interval 
C)  continuous; discrete 
D)  discrete; continuous 
A)  interval; ratio 
B)  ratio; interval 
C)  continuous; discrete 
D)  discrete; continuous

Question 7

Categorical data use either the ______ or ______ scale of measurement.

Accepted Answer

A)  nominal; ordinal 
B)  nominal; interval 
C)  ordinal; interval 
D)  interval; ratio 
A)  nominal; ordinal 
B)  nominal; interval 
C)  ordinal; interval 
D)  interval; ratio

Question 8

Which of the following is NOT an example of a firm that sells or leases business database services to clients?

Accepted Answer

A)  Dun & Bradstreet 
B)  Bloomberg 
C)  U.S. Census Bureau 
D)  Dow Jones and Company 
A)  Dun & Bradstreet 
B)  Bloomberg 
C)  U.S. Census Bureau 
D)  Dow Jones and Company

Question 9

A statistics professor asked students in a class their ages.Based on this information, the professor states that the average age of students in the university is 21 years.This is an example of _____.

Accepted Answer

A)  a census 
B)  descriptive statistics 
C)  an experiment 
D)  statistical inference 
A)  a census 
B)  descriptive statistics 
C)  an experiment 
D)  statistical inference

Question 10

The summaries of data, which may be tabular, graphical, or numerical, are referred to as _____.

Accepted Answer

A)  inferential statistics 
B)  descriptive statistics 
C)  statistical inference 
D)  report generation 
A)  inferential statistics 
B)  descriptive statistics 
C)  statistical inference 
D)  report generation

Question 11

The number of observations in a complete data set having 10 elements and 5 variables is _____.

Accepted Answer

A)  5 
B)  10 
C)  25 
D)  50 
A)  5 
B)  10 
C)  25 
D)  50

Question 12

Dr.Kurt Thearling, a leading practitioner in the field, defines data mining as "the _____ extraction of _____ information from databases."

Accepted Answer

A)  thorough, insightful 
B)  timely, accurate 
C)  automated, predictive 
D)  intentional, useful 
A)  thorough, insightful 
B)  timely, accurate 
C)  automated, predictive 
D)  intentional, useful

Question 13

Which of the following variables uses the interval scale of measurement?

Accepted Answer

A)  name of stock exchange 
B)  time 
C)  SAT scores 
D)  social security number 
A)  name of stock exchange 
B)  time 
C)  SAT scores 
D)  social security number

Question 14

Which of the following is NOT a categorical variable?

Accepted Answer

A)  your age on your last birthday 
B)  your cell phone area code 
C)  your accounting class start time 
D)  your high school graduation year 
A)  your age on your last birthday 
B)  your cell phone area code 
C)  your accounting class start time 
D)  your high school graduation year

Question 15

For ease of data entry into a university database, 1 denotes the student is enrolled in an undergraduate degree program, 2 indicates the student is enrolled in a master's degree program, and 3 indicates the student is enrolled in a doctoral degree program.In this case, the data are which scale of measurement?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio 
A)  nominal 
B)  ordinal 
C)  interval 
D)  ratio

Question 16

In a questionnaire, respondents are asked to record their age in years.Age is an example of a _____.

Accepted Answer

A)  categorical variable 
B)  quantitative variable 
C)  categorical or quantitative variable, depending on how the respondents answered the question 
D)  ratio variable 
A)  categorical variable 
B)  quantitative variable 
C)  categorical or quantitative variable, depending on how the respondents answered the question 
D)  ratio variable

Question 17

Which of the following is an example of quantitative data?

Accepted Answer

A)  the player's number on a baseball uniform 
B)  the serial number on a one-dollar bill 
C)  the part number of an inventory item 
D)  the number of people in a waiting line 
A)  the player's number on a baseball uniform 
B)  the serial number on a one-dollar bill 
C)  the part number of an inventory item 
D)  the number of people in a waiting line

Question 18

Which two scales of measurement can be either numeric or nonnumeric?

Accepted Answer

A)  nominal and ratio 
B)  ordinal and interval 
C)  interval and ordinal 
D)  nominal and ordinal 
A)  nominal and ratio 
B)  ordinal and interval 
C)  interval and ordinal 
D)  nominal and ordinal

Question 19

Quantitative data _____.

Accepted Answer

A)  are always nonnumeric 
B)  may be either numeric or nonnumeric 
C)  are always numeric 
D)  are always labels 
A)  are always nonnumeric 
B)  may be either numeric or nonnumeric 
C)  are always numeric 
D)  are always labels

Question 20

Which of the following is NOT a scale of measurement?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval 
D)  categorical 
A)  nominal 
B)  ordinal 
C)  interval 
D)  categorical

Which of the following variables uses the ratio scale of measurement?

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement?

When the data have the properties of interval data and the multiplication or division of two values is meaningful, the variable has which scale of measurement?

A sample of five Fortune 500 companies showed the following revenues ($ millions): 7505.0, 2904.7, 7208.4, 6819.0, and 19500.0.Based on this information, which of the following statements is correct?

The graph below best exemplifies a _____.

Quantitative data that measure "how many" are ; quantitative data that measure "how much" are .

Categorical data use either the or scale of measurement.

Which of the following is NOT an example of a firm that sells or leases business database services to clients?

A statistics professor asked students in a class their ages.Based on this information, the professor states that the average age of students in the university is 21 years.This is an example of _____.

The summaries of data, which may be tabular, graphical, or numerical, are referred to as _____.

The number of observations in a complete data set having 10 elements and 5 variables is _____.

Dr.Kurt Thearling, a leading practitioner in the field, defines data mining as "the _ extraction of _ information from databases."

Which of the following variables uses the interval scale of measurement?

Which of the following is NOT a categorical variable?

In a questionnaire, respondents are asked to record their age in years.Age is an example of a _____.

Which of the following is an example of quantitative data?

Which two scales of measurement can be either numeric or nonnumeric?

Quantitative data _____.

Which of the following is NOT a scale of measurement?

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

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

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

Exam 1: Data and Statistics

Which of the following variables uses the ratio scale of measurement?

When the data have the properties of ordinal data and the interval between observations is expressed in terms of a fixed unit of measure, the variable has which scale of measurement?

When the data have the properties of interval data and the multiplication or division of two values is meaningful, the variable has which scale of measurement?

A sample of five Fortune 500 companies showed the following revenues ($ millions): 7505.0, 2904.7, 7208.4, 6819.0, and 19500.0.Based on this information, which of the following statements is correct?

The graph below best exemplifies a _____. ​

Quantitative data that measure "how many" are ________; quantitative data that measure "how much" are ________.

Categorical data use either the ______ or ______ scale of measurement.

Which of the following is NOT an example of a firm that sells or leases business database services to clients?

A statistics professor asked students in a class their ages.Based on this information, the professor states that the average age of students in the university is 21 years.This is an example of _____.

The summaries of data, which may be tabular, graphical, or numerical, are referred to as _____.

The number of observations in a complete data set having 10 elements and 5 variables is _____.

Dr.Kurt Thearling, a leading practitioner in the field, defines data mining as "the _____ extraction of _____ information from databases."

Which of the following variables uses the interval scale of measurement?

Which of the following is NOT a categorical variable?

In a questionnaire, respondents are asked to record their age in years.Age is an example of a _____.

Which of the following is an example of quantitative data?

Which two scales of measurement can be either numeric or nonnumeric?

Quantitative data _____.

Which of the following is NOT a scale of measurement?

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

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

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

The graph below best exemplifies a _____.

Quantitative data that measure "how many" are ; quantitative data that measure "how much" are .

Categorical data use either the or scale of measurement.

Dr.Kurt Thearling, a leading practitioner in the field, defines data mining as "the _ extraction of _ information from databases."