Question 1

According to the stem-and-leaf plot below, this data set is symmetric.

Accepted Answer

A) True 
 B)False

Question 2

Correlation implies causation.

Accepted Answer

A) True 
 B)False

Question 3

A cumulative relative frequency distribution lists the number of observations that lie below each of the class limits.

Accepted Answer

A) True 
 B)False

Question 4

For what type of data is a histogram appropriate?

Accepted Answer

Interval,

Question 5

Which of the following situations is best suited for a pie chart?

Accepted Answer

A)  The number of dollars spent this year on each type of legal gambling. 
B)  The percentage of a charitable donation that goes to administrative costs vs. directly to the charity. 
C)  The number of students in your class who received an A, B, C, D, F on their exam. 
D)  All of these choices are true. 
A)  The number of dollars spent this year on each type of legal gambling. 
B)  The percentage of a charitable donation that goes to administrative costs vs. directly to the charity. 
C)  The number of students in your class who received an A, B, C, D, F on their exam. 
D)  All of these choices are true.

Question 6

Car Buyers: Forty car buyers were asked to indicate which car dealer offered the best overall service. The four choices were Contour Motors (C), Modern Chrysler (M), Tonneau Auto (T), and Uncanny Chevrolet (U). The following data were obtained:
  
-Construct a frequency bar chart of this data. Which car dealer came in last place in terms of overall service?

Accepted Answer

@#IMG-DLM& Uncanny Chevrolet (U) receive

Question 7

A stem-and-leaf display reveals more information about the original data than does a histogram.

Accepted Answer

A) True 
 B)False

Question 8

Insurance Company: A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results:
  
-What number of claims was made by the highest proportion of homeowners?

Accepted Answer

20/64 = 31% of the h

Question 9

A modal class is the class with the largest number of observations.

Accepted Answer

A) True 
 B)False

Question 10

The classification of student class designation (freshman, sophomore, junior, senior) is an example of a(n)

Accepted Answer

A)  nominal random variable. 
B)  interval random variable. 
C)  ordinal random variable. 
D)  a parameter. 
A)  nominal random variable. 
B)  interval random variable. 
C)  ordinal random variable. 
D)  a parameter.

Question 11

We can summarize nominal data in a table that presents the categories and their counts. This table is called a(n) ____________________ distribution.

Accepted Answer

The answer of We can summarize nominal data in a...

Question 12

A relative frequency distribution lists the categories and their counts.

Accepted Answer

A) True 
 B)False

Question 13

The histogram below has a shape that is ____________________.

Accepted Answer

symmetric

Question 14

Your final grade in a course (A, B, C, D, E) is a nominal variable.

Accepted Answer

A) True 
 B)False

Question 15

A variable is some characteristic of a population or sample.

Accepted Answer

A) True 
 B)False

Question 16

What does the length of each line of a stem-and-leaf display represent?

Accepted Answer

A)  The percentage of observations in the interval represented by that stem. 
B)  The number of observations in the interval represented by that stem. 
C)  The total frequency of observations within or below that stem. 
D)  The number of digits to the left of the decimal point. 
A)  The percentage of observations in the interval represented by that stem. 
B)  The number of observations in the interval represented by that stem. 
C)  The total frequency of observations within or below that stem. 
D)  The number of digits to the left of the decimal point.

Question 17

Time series data are often graphically depicted on a(n) ____________________, which is a plot of the variable of interest over time.

Accepted Answer

The answer of Time series data are often graphically depicted...

Question 18

Test Grades: The scores on a calculus test for a random sample of 40 students are as follows:
  
-Construct frequency and relative frequency distributions for this data set using seven class intervals. Describe the shape of the data set.

Accepted Answer

@#IMG-DLM& The data is relativ

Question 19

In a pie chart, each slice is proportional to the ____________________ of individuals in that category.

Accepted Answer

percentage

Question 20

What kind(s) of data can be depicted by a line chart?

Accepted Answer

A)  Frequencies of an interval over time. 
B)  Frequencies of a nominal variable over time. 
C)  Relative frequencies of a nominal variable over time. 
D)  All of these choices are true. 
A)  Frequencies of an interval over time. 
B)  Frequencies of a nominal variable over time. 
C)  Relative frequencies of a nominal variable over time. 
D)  All of these choices are true.

According to the stem-and-leaf plot below, this data set is symmetric.

Correlation implies causation.

A cumulative relative frequency distribution lists the number of observations that lie below each of the class limits.

For what type of data is a histogram appropriate?

Which of the following situations is best suited for a pie chart?

A stem-and-leaf display reveals more information about the original data than does a histogram.

Insurance Company: A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results: -What number of claims was made by the highest proportion of homeowners?

A modal class is the class with the largest number of observations.

The classification of student class designation (freshman, sophomore, junior, senior) is an example of a(n)

We can summarize nominal data in a table that presents the categories and their counts. This table is called a(n) ____________________ distribution.

A relative frequency distribution lists the categories and their counts.

The histogram below has a shape that is ____________________.

Your final grade in a course (A, B, C, D, E) is a nominal variable.

A variable is some characteristic of a population or sample.

What does the length of each line of a stem-and-leaf display represent?

Time series data are often graphically depicted on a(n) ____________________, which is a plot of the variable of interest over time.

Test Grades: The scores on a calculus test for a random sample of 40 students are as follows: -Construct frequency and relative frequency distributions for this data set using seven class intervals. Describe the shape of the data set.

In a pie chart, each slice is proportional to the ____________________ of individuals in that category.

What kind(s) of data can be depicted by a line chart?

What Is Statistics

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations, Part 1

Inference About Comparing Two Populations, Part 2

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Review of Statistical Inference

Filters

Exam 2: Graphical and Tabular Descriptive Techniques

According to the stem-and-leaf plot below, this data set is symmetric.

Correlation implies causation.

A cumulative relative frequency distribution lists the number of observations that lie below each of the class limits.

For what type of data is a histogram appropriate?

Which of the following situations is best suited for a pie chart?

A stem-and-leaf display reveals more information about the original data than does a histogram.

Insurance Company: A representative from a local insurance agency selected a random sample of insured homeowners and recorded the number of claims made in the last three years, with the following results: -What number of claims was made by the highest proportion of homeowners?

A modal class is the class with the largest number of observations.

The classification of student class designation (freshman, sophomore, junior, senior) is an example of a(n)

We can summarize nominal data in a table that presents the categories and their counts. This table is called a(n) ____________________ distribution.

A relative frequency distribution lists the categories and their counts.

The histogram below has a shape that is ____________________.

Your final grade in a course (A, B, C, D, E) is a nominal variable.

A variable is some characteristic of a population or sample.

What does the length of each line of a stem-and-leaf display represent?

Time series data are often graphically depicted on a(n) ____________________, which is a plot of the variable of interest over time.

Test Grades: The scores on a calculus test for a random sample of 40 students are as follows: -Construct frequency and relative frequency distributions for this data set using seven class intervals. Describe the shape of the data set.

In a pie chart, each slice is proportional to the ____________________ of individuals in that category.

What kind(s) of data can be depicted by a line chart?

What Is Statistics

Numerical Descriptive Techniques

Data Collection and Sampling

Probability

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations, Part 1

Inference About Comparing Two Populations, Part 2

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Review of Statistical Inference

Filters