Question 1

{Teachers Ages Narrative} Draw a stem-and-leaf display of this data. What is the minimum and maximum age of the teachers in this data set?

Accepted Answer

The answer of {Teachers Ages Narrative} Draw a stem-and-leaf display...

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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:   {Insurance Company Narrative} What number of claims was made by the highest proportion of homeowners?

Accepted Answer

20\64 = 31% of the h

Question 4

A histogram represents interval data.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following represents a graphical presentation of interval data?

Accepted Answer

A) A bar chart. 
B) A histogram. 
C) A pie chart. 
D) All of these choices are true. 
A) A bar chart. 
B) A histogram. 
C) A pie chart. 
D) All of these choices are true.

Question 6

The histogram below has a shape that is ____________________.

Accepted Answer

The answer of The histogram below has a shape that...

Question 7

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:   {Insurance Company Narrative} How many homeowners are represented in the sample?

Accepted Answer

9 + 20 + 1

Question 8

Compare the two histograms below. Which statement is true?

Accepted Answer

A) The spread of histogram A is smaller than the spread of histogram B. 
B) The spread of histogram A is larger than the spread of histogram B. 
C) The spread of histogram A is the same as the spread of histogram B. 
D) You cannot compare the spreads of these two histograms without the original data. 
A) The spread of histogram A is smaller than the spread of histogram B. 
B) The spread of histogram A is larger than the spread of histogram B. 
C) The spread of histogram A is the same as the spread of histogram B. 
D) You cannot compare the spreads of these two histograms without the original data.

Question 9

Your age is an interval variable.

Accepted Answer

A) True 
 B)False

Question 10

You cannot calculate and interpret differences between numbers assigned to nominal data.

Accepted Answer

A) True 
 B)False

Question 11

What values are displayed on a cumulative relative frequency distribution?

Accepted Answer

A) The number of observations that fall into each class interval. 
B) The proportion of observations that fall into each class interval. 
C) The number of observations that fall below each class interval. 
D) The proportion of observations that fall below each class interval. 
A) The number of observations that fall into each class interval. 
B) The proportion of observations that fall into each class interval. 
C) The number of observations that fall below each class interval. 
D) The proportion of observations that fall below each class interval.

Question 12

A(n)____________________ distribution lists the categories of a nominal variable and the proportion with which each occurs.

Accepted Answer

The answer of A(n)____________________ distribution lists the categories of a...

Question 13

From a pie chart you are able to find the frequency for each category.

Accepted Answer

A) True 
 B)False

Question 14

We create a frequency distribution for interval data by counting the number of observations that fall into each of a series of intervals, called ____________________.

Accepted Answer

The answer of We create a frequency distribution for interval...

Question 15

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.

Accepted Answer

A) True 
 B)False

Question 16

A line chart is created by plotting the value of the variable on the ____________________ axis and the time periods on the ____________________ axis.

Accepted Answer

vertical;

Question 17

Identify the type of data for which each of the following graphs is appropriate. 
 a. Pie chart 
 b. Bar chart

Accepted Answer

a. Nominal

Question 18

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 19

The intervals (classes)in a histogram are equally wide.

Accepted Answer

A) True 
 B)False

Question 20

The graph below represents a line graph.

Accepted Answer

A) True 
 B)False

{Teachers Ages Narrative} Draw a stem-and-leaf display of this data. What is the minimum and maximum age of the teachers in this data set?

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

A histogram represents interval data.

Which of the following represents a graphical presentation of interval data?

The histogram below has a shape that is ____________________.

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: {Insurance Company Narrative} How many homeowners are represented in the sample?

Compare the two histograms below. Which statement is true?

Your age is an interval variable.

You cannot calculate and interpret differences between numbers assigned to nominal data.

What values are displayed on a cumulative relative frequency distribution?

A(n)____________________ distribution lists the categories of a nominal variable and the proportion with which each occurs.

From a pie chart you are able to find the frequency for each category.

We create a frequency distribution for interval data by counting the number of observations that fall into each of a series of intervals, called ____________________.

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.

A line chart is created by plotting the value of the variable on the axis and the time periods on the axis.

Identify the type of data for which each of the following graphs is appropriate. a. Pie chart b. Bar chart

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

The intervals (classes)in a histogram are equally wide.

The graph below represents a line graph.

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 Populat

Inference About Comparing Two Populat

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlat

Multiple Regression

Review of Statistical Inference

Filters

Exam 2: Graphical and Tabular Descriptive Techniques

{Teachers Ages Narrative} Draw a stem-and-leaf display of this data. What is the minimum and maximum age of the teachers in this data set?

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

A histogram represents interval data.

Which of the following represents a graphical presentation of interval data?

The histogram below has a shape that is ____________________.

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: {Insurance Company Narrative} How many homeowners are represented in the sample?

Compare the two histograms below. Which statement is true?

Your age is an interval variable.

You cannot calculate and interpret differences between numbers assigned to nominal data.

What values are displayed on a cumulative relative frequency distribution?

A(n)____________________ distribution lists the categories of a nominal variable and the proportion with which each occurs.

From a pie chart you are able to find the frequency for each category.

We create a frequency distribution for interval data by counting the number of observations that fall into each of a series of intervals, called ____________________.

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.

A line chart is created by plotting the value of the variable on the ____________________ axis and the time periods on the ____________________ axis.

Identify the type of data for which each of the following graphs is appropriate. a. Pie chart b. Bar chart

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

The intervals (classes)in a histogram are equally wide.

The graph below represents a line graph.

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 Populat

Inference About Comparing Two Populat

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlat

Multiple Regression

Review of Statistical Inference

Filters

A line chart is created by plotting the value of the variable on the axis and the time periods on the axis.