EBTM 350 EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Converting the raw data into a ___________ distribution is often a first step in
making the data more manageable and easier to assess
frequency
A frequency distribution for a categorical variable groups the data into categories
and records the number of observations that fall into each category. In a survey,
we asked 1000 respondents which car they would purchase if they had a choice
between an Audi, a Mazda, a Toyota, or a Subaru. Of the 1000 respondents, 116
chose the Audi. What is the relative frequency of Audi respondents?
.116 (Point 116)
If a bar chart depicts the relative frequency for type of occupations (with options
as Doctor, Professor, Athlete, or Actor) as the categorical variable as a series of
vertical bars, and the Doctor vertical bar has a value of .4, and there are 10
employeed individuals responding, how many Doctors were in the group of 10?
4
Which of the following examples violates the 'mutually exclusive' guideline for
interval construction?
300 < x ≤ 400 and 400 ≤ x ≤ 500
, Which 'tool' depicts the frequency or the relative frequency for each category of
the categorical variable as a series of horizontal or vertical bars, the lengths of
which are proportional to the values that are to be depicted.
Bar chart
We asked 1000 respondents whether they preferred Online teaching, hybrid
teaching, or attending class in person. The relative frequency of the Online
teaching proponents was point 252 or (.252). How many respondents preferred
online teaching?
252
When constructing a histogram, we typically mark off the interval limits along the
horizontal axis. What does the height of each bar represent? Choose all that are
correct responses.
Number of intervals
Frequency of each interval
The type of response
Relative Frequency
A vertical bar chart is often referred to as which of the following?
Column chart
Which of the basic guidelines should you follow when constructing or
interpreting charts or graphs? Choose all that apply!
Give high values for upper limits on a graph
Axes should be clearly marked and labeled
SOLUTIONS VERIFIED
Converting the raw data into a ___________ distribution is often a first step in
making the data more manageable and easier to assess
frequency
A frequency distribution for a categorical variable groups the data into categories
and records the number of observations that fall into each category. In a survey,
we asked 1000 respondents which car they would purchase if they had a choice
between an Audi, a Mazda, a Toyota, or a Subaru. Of the 1000 respondents, 116
chose the Audi. What is the relative frequency of Audi respondents?
.116 (Point 116)
If a bar chart depicts the relative frequency for type of occupations (with options
as Doctor, Professor, Athlete, or Actor) as the categorical variable as a series of
vertical bars, and the Doctor vertical bar has a value of .4, and there are 10
employeed individuals responding, how many Doctors were in the group of 10?
4
Which of the following examples violates the 'mutually exclusive' guideline for
interval construction?
300 < x ≤ 400 and 400 ≤ x ≤ 500
, Which 'tool' depicts the frequency or the relative frequency for each category of
the categorical variable as a series of horizontal or vertical bars, the lengths of
which are proportional to the values that are to be depicted.
Bar chart
We asked 1000 respondents whether they preferred Online teaching, hybrid
teaching, or attending class in person. The relative frequency of the Online
teaching proponents was point 252 or (.252). How many respondents preferred
online teaching?
252
When constructing a histogram, we typically mark off the interval limits along the
horizontal axis. What does the height of each bar represent? Choose all that are
correct responses.
Number of intervals
Frequency of each interval
The type of response
Relative Frequency
A vertical bar chart is often referred to as which of the following?
Column chart
Which of the basic guidelines should you follow when constructing or
interpreting charts or graphs? Choose all that apply!
Give high values for upper limits on a graph
Axes should be clearly marked and labeled
