Question 1

Which of the following relationships would have a negative correlation coefficient?

Accepted Answer

A) Supply and demand 
B) Amount of a bill at a restaurant and the amount of the tip 
C) Cost of a car and the amount of tax to be paid 
D) The square footage of a home and the price of the home 
A) Supply and demand 
B) Amount of a bill at a restaurant and the amount of the tip 
C) Cost of a car and the amount of tax to be paid 
D) The square footage of a home and the price of the home A

Question 2

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the relative frequency of the 21-24 bin? ​   ​

Accepted Answer

A) 0.05 
B) 0.14 
C) 0.25 
D) 2.5 
A) 0.05 
B) 0.14 
C) 0.25 
D) 2.5 C

Question 3

Compute the geometric mean for the following data on growth factors of an investment for 10 years. 1.10, 0.50, 0.70, 1.21, 1.25, 1.12, 1.16, 1.11, 1.13, 1.22

Accepted Answer

A) 1.0221 
B) 1.0148 
C) 1.0363 
D) 1.1475 
A) 1.0221 
B) 1.0148 
C) 1.0363 
D) 1.1475 B

Question 4

A sample of 13 adult males' heights are listed below. ​
70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 74
​
Find the range of the data.
​

Accepted Answer

A) 7 
B) 6.5 
C) 5 
D) 4 
A) 7 
B) 6.5 
C) 5 
D) 4

Question 5

In a(n) __________, one or more variables are identified and controlled or manipulated so that data can be obtained about how they influence the variable of interest identified first.

Accepted Answer

A) experimental study 
B) observational study 
C) categorical study 
D) variable study 
A) experimental study 
B) observational study 
C) categorical study 
D) variable study

Question 6

Below is the data for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. ​
56, 42, 37, 29, 45, 51, 30, 25, 34, 57
​
What is the median number of days that it took Wyche Accounting to perform audits in the last quarter of last year?
​

Accepted Answer

A) 41 
B) 40.6 
C) 39.5 
D) 42 
A) 41 
B) 40.6 
C) 39.5 
D) 42

Question 7

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the bin size for the histogram? ​   ​

Accepted Answer

A) 3 
B) 4 
C) 16 
D) 5 
A) 3 
B) 4 
C) 16 
D) 5

Question 8

The difference in a variable measured over observations (time, customers, items, etc.) is known as

Accepted Answer

A) observed differences. 
B) variation. 
C) variable change. 
D) descriptive analytics. 
A) observed differences. 
B) variation. 
C) variable change. 
D) descriptive analytics.

Question 9

A __________ is a graphical summary of data previously summarized in a frequency distribution.

Accepted Answer

A) box plot 
B) histogram 
C) line chart 
D) scatter chart 
A) box plot 
B) histogram 
C) line chart 
D) scatter chart

Question 10

Compute the third quartile for the following data. 10, 15, 17, 21, 25, 12, 16, 11, 13, 22

Accepted Answer

A) 21.25 
B) 15.5 
C) 21.5 
D) 11.75 
A) 21.25 
B) 15.5 
C) 21.5 
D) 11.75

Question 11

The data collected from the customers in restaurants about the quality of food is an example of a(n) ​

Accepted Answer

A) variable study. 
B) cross-sectional study. 
C) experimental study. 
D) observational study. 
A) variable study. 
B) cross-sectional study. 
C) experimental study. 
D) observational study.

Question 12

Compute the relative frequency for students who earned an A shown in the table of grades below. ? $$\begin{array} { l | c } 
\text { Grades } & \text { Number of Students } \
\hline \text { A } & 10 \
\text { B } & 31 \
\text { C } & 36 \
\text { D } & 6 \
\hline & \mathbf { 8 3 }
\end{array}$$ ?

Accepted Answer

A) 0.12 
B) 0.10 
C) 0.83 
D) Not enough information 
A) 0.12 
B) 0.10 
C) 0.83 
D) Not enough information

Question 13

A set of values corresponding to a set of variables is defined as a(n)

Accepted Answer

A) quantity. 
B) event. 
C) factor. 
D) observation. 
A) quantity. 
B) event. 
C) factor. 
D) observation.

Question 14

The College Board reported that the mean Math Level 2 SAT subject test score was 686 with a standard deviation of 96. Assuming scores follow a bell-shaped distribution, use the empirical rule to find the percentage of students who scored less than 494.

Accepted Answer

A) 97.5% 
B) 95% 
C) 2.5% 
D) 5% 
A) 97.5% 
B) 95% 
C) 2.5% 
D) 5%

Question 15

Which of the following gives the proportion of items in each bin?

Accepted Answer

A) Frequency 
B) Class size 
C) Relative frequency 
D) Bin proportion 
A) Frequency 
B) Class size 
C) Relative frequency 
D) Bin proportion

Question 16

Which of the following graphs provides information on outliers and IQR of a data set?

Accepted Answer

A) Histogram 
B) Line chart 
C) Scatter chart 
D) Box plot 
A) Histogram 
B) Line chart 
C) Scatter chart 
D) Box plot

Question 17

Compute the median of the following data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37

Accepted Answer

A) 28 
B) 31 
C) 40 
D) 34 
A) 28 
B) 31 
C) 40 
D) 34

Question 18

The __________ shows the number of data items with values less than or equal to the upper class limit of each class.

Accepted Answer

A) cumulative frequency distribution 
B) frequency distribution 
C) percent frequency distribution 
D) relative frequency distribution 
A) cumulative frequency distribution 
B) frequency distribution 
C) percent frequency distribution 
D) relative frequency distribution

Question 19

When working with data sets in Excel, __________ can be used to automatically highlight cells that meet specified requirements.

Accepted Answer

A) averaging 
B) conditional formatting 
C) summing 
D) sorting 
A) averaging 
B) conditional formatting 
C) summing 
D) sorting

Question 20

A summary of data that shows the number of observations in each of several nonoverlapping bins is called a(n) ​

Accepted Answer

A) frequency distribution. 
B) sample summary. 
C) bin distribution. 
D) observed distribution. 
A) frequency distribution. 
B) sample summary. 
C) bin distribution. 
D) observed distribution.

Which of the following relationships would have a negative correlation coefficient?

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the relative frequency of the 21-24 bin?

Compute the geometric mean for the following data on growth factors of an investment for 10 years. 1.10, 0.50, 0.70, 1.21, 1.25, 1.12, 1.16, 1.11, 1.13, 1.22

A sample of 13 adult males' heights are listed below. 70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 74 Find the range of the data.

In a(n) __________, one or more variables are identified and controlled or manipulated so that data can be obtained about how they influence the variable of interest identified first.

Below is the data for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. 56, 42, 37, 29, 45, 51, 30, 25, 34, 57 What is the median number of days that it took Wyche Accounting to perform audits in the last quarter of last year?

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the bin size for the histogram?

The difference in a variable measured over observations (time, customers, items, etc.) is known as

A __________ is a graphical summary of data previously summarized in a frequency distribution.

Compute the third quartile for the following data. 10, 15, 17, 21, 25, 12, 16, 11, 13, 22

The data collected from the customers in restaurants about the quality of food is an example of a(n)

Compute the relative frequency for students who earned an A shown in the table of grades below. ? Grades Number of Students A 10 B 31 C 36 D 6 ?

A set of values corresponding to a set of variables is defined as a(n)

The College Board reported that the mean Math Level 2 SAT subject test score was 686 with a standard deviation of 96. Assuming scores follow a bell-shaped distribution, use the empirical rule to find the percentage of students who scored less than 494.

Which of the following gives the proportion of items in each bin?

Which of the following graphs provides information on outliers and IQR of a data set?

Compute the median of the following data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37

The __________ shows the number of data items with values less than or equal to the upper class limit of each class.

When working with data sets in Excel, __________ can be used to automatically highlight cells that meet specified requirements.

A summary of data that shows the number of observations in each of several nonoverlapping bins is called a(n)

Introduction

Data Visualization

Descriptive Data Mining

Probability: an Introduction to Modeling Uncertainty

Statistical Inference

Linear Regression

Time Series Analysis and Forecasting

Predictive Data Mining

Spreadsheet Models

Monte Carlo Simulation

Linear Optimization Models

Integer Linear Optimization Models

Nonlinear Optimization Models

Decision Analysis

Filters

Exam 2: Descriptive Statistics

Which of the following relationships would have a negative correlation coefficient?

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the relative frequency of the 21-24 bin? ​ ​

Compute the geometric mean for the following data on growth factors of an investment for 10 years. 1.10, 0.50, 0.70, 1.21, 1.25, 1.12, 1.16, 1.11, 1.13, 1.22

A sample of 13 adult males' heights are listed below. ​ 70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 74 ​ Find the range of the data. ​

In a(n) __________, one or more variables are identified and controlled or manipulated so that data can be obtained about how they influence the variable of interest identified first.

Below is the data for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. ​ 56, 42, 37, 29, 45, 51, 30, 25, 34, 57 ​ What is the median number of days that it took Wyche Accounting to perform audits in the last quarter of last year? ​

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the bin size for the histogram? ​ ​

The difference in a variable measured over observations (time, customers, items, etc.) is known as

A __________ is a graphical summary of data previously summarized in a frequency distribution.

Compute the third quartile for the following data. 10, 15, 17, 21, 25, 12, 16, 11, 13, 22

The data collected from the customers in restaurants about the quality of food is an example of a(n) ​

Compute the relative frequency for students who earned an A shown in the table of grades below. ? Grades Number of Students A 10 B 31 C 36 D 6 ?

A set of values corresponding to a set of variables is defined as a(n)

The College Board reported that the mean Math Level 2 SAT subject test score was 686 with a standard deviation of 96. Assuming scores follow a bell-shaped distribution, use the empirical rule to find the percentage of students who scored less than 494.

Which of the following gives the proportion of items in each bin?

Which of the following graphs provides information on outliers and IQR of a data set?

Compute the median of the following data. 32, 41, 36, 24, 29, 30, 40, 22, 25, 37

The __________ shows the number of data items with values less than or equal to the upper class limit of each class.

When working with data sets in Excel, __________ can be used to automatically highlight cells that meet specified requirements.

A summary of data that shows the number of observations in each of several nonoverlapping bins is called a(n) ​

Introduction

Data Visualization

Descriptive Data Mining

Probability: an Introduction to Modeling Uncertainty

Statistical Inference

Linear Regression

Time Series Analysis and Forecasting

Predictive Data Mining

Spreadsheet Models

Monte Carlo Simulation

Linear Optimization Models

Integer Linear Optimization Models

Nonlinear Optimization Models

Decision Analysis

Filters

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the relative frequency of the 21-24 bin?

A sample of 13 adult males' heights are listed below. 70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 74 Find the range of the data.

Below is the data for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. 56, 42, 37, 29, 45, 51, 30, 25, 34, 57 What is the median number of days that it took Wyche Accounting to perform audits in the last quarter of last year?

Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the bin size for the histogram?

The data collected from the customers in restaurants about the quality of food is an example of a(n)

A summary of data that shows the number of observations in each of several nonoverlapping bins is called a(n)