WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
When one variable causes change in another, we call the first
variable the ___________________ variable*.
The affected variable is called the _______________ variable*. -
Correct Answer ✅When one variable causes change in
another, we call the first variable the explanatory variable*.
The affected variable is called the response variable*.
In a randomized experiment, the researcher manipulates
values of the explanatory variable and measures the resulting
changes in the response variable. The different values of the
explanatory variable are called treatments. An experimental
unit is a single object or individual to be measured.
A two-way table, also known as a two-way frequency table or
contingency table, is used to show the relationship between
two ______________________variables ( C→C ); the rows show
the categories of one variable, and the columns show the
categories of the other variable. - Correct Answer
✅categorical variables ( C→C )
,WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
______________________. These represent the total number of
instances that fall in both the corresponding row and header.
The data in the green cells show
_______________________________. These are equal to the sum of
the number of individuals in the corresponding row or
column. - Correct Answer ✅The cells in yellow show joint
frequencies*. These represent the total number of instances
that fall in both the corresponding row and header.
For example, data in the "Male" row and "With Autism"
column counts the number of males with autism.
The data in the green cells show marginal frequencies*.
These are equal to the sum of the number of individuals in
the corresponding row or column. For example, data in the
"Totals" column and "Female" row shows the total number of
females in the study. It may be helpful to remember that
marginal frequencies appear in the margins of the table.
, WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
The bottom, right cell (in both the "Totals" column and the
"Totals" row) measures the total number of individuals in the
study.
The relationship between two variables that are both
quantitative can be displayed in a __________________________.
- Correct Answer ✅scatterplot;
As we've seen earlier, every point on a coordinate plane can
be represented by an ordered pair*, ( x , y ). Here, the x -
value is typically the _________________variable's value for a
piece of data, and the y -value is the corresponding value for
the ________________________variable. A simple way to
remember this fact is that the term "explanatory" has an " x "
in it. - Correct Answer ✅explanatory variable; response
variable
Side-by-side box plots are a good choice for two-variable data
where the explanatory variable is ____________ data and the
response variable is ____________ data. - Correct Answer
✅Categorical
Questions and Answers (Latest Update
2024)
When one variable causes change in another, we call the first
variable the ___________________ variable*.
The affected variable is called the _______________ variable*. -
Correct Answer ✅When one variable causes change in
another, we call the first variable the explanatory variable*.
The affected variable is called the response variable*.
In a randomized experiment, the researcher manipulates
values of the explanatory variable and measures the resulting
changes in the response variable. The different values of the
explanatory variable are called treatments. An experimental
unit is a single object or individual to be measured.
A two-way table, also known as a two-way frequency table or
contingency table, is used to show the relationship between
two ______________________variables ( C→C ); the rows show
the categories of one variable, and the columns show the
categories of the other variable. - Correct Answer
✅categorical variables ( C→C )
,WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
______________________. These represent the total number of
instances that fall in both the corresponding row and header.
The data in the green cells show
_______________________________. These are equal to the sum of
the number of individuals in the corresponding row or
column. - Correct Answer ✅The cells in yellow show joint
frequencies*. These represent the total number of instances
that fall in both the corresponding row and header.
For example, data in the "Male" row and "With Autism"
column counts the number of males with autism.
The data in the green cells show marginal frequencies*.
These are equal to the sum of the number of individuals in
the corresponding row or column. For example, data in the
"Totals" column and "Female" row shows the total number of
females in the study. It may be helpful to remember that
marginal frequencies appear in the margins of the table.
, WGU C784-Statistics Mod 5 Exam
Questions and Answers (Latest Update
2024)
The bottom, right cell (in both the "Totals" column and the
"Totals" row) measures the total number of individuals in the
study.
The relationship between two variables that are both
quantitative can be displayed in a __________________________.
- Correct Answer ✅scatterplot;
As we've seen earlier, every point on a coordinate plane can
be represented by an ordered pair*, ( x , y ). Here, the x -
value is typically the _________________variable's value for a
piece of data, and the y -value is the corresponding value for
the ________________________variable. A simple way to
remember this fact is that the term "explanatory" has an " x "
in it. - Correct Answer ✅explanatory variable; response
variable
Side-by-side box plots are a good choice for two-variable data
where the explanatory variable is ____________ data and the
response variable is ____________ data. - Correct Answer
✅Categorical
