WGU C784-Statistics Mod 5
Study online at https://quizlet.com/_6uus88
1. When one variable causes change in When one variable causes change in another, we call
another, we call the first variable the the first variable the explanatory variable*.
___________________ variable*.
The affected variable is called the response variable*.
The affected variable is called the
_______________ variable*. In a randomized experiment, the researcher manipu-
lates 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.
2. A two-way table, also known as categorical variables ( C’C )
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.
3. ______________________. These repre- The cells in yellow show joint frequencies*. These rep-
sent the total number of instances resent the total number of instances that fall in both
that fall in both the corresponding the corresponding row and header.
row and header.
For example, data in the "Male" row and "With Autism"
The data in the green cells column counts the number of males with autism.
show _______________________________.
These are equal to the sum of the The data in the green cells show marginal frequen-
number of individuals in the corre- cies*. These are equal to the sum of the number of
sponding row or column. 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
, WGU C784-Statistics Mod 5
Study online at https://quizlet.com/_6uus88
may be helpful to remember that marginal frequencies
appear in the margins of the table.
The bottom, right cell (in both the "Totals" column
and the "Totals" row) measures the total number of
individuals in the study.
4. The relationship between two scatterplot;
variables that are both quan-
titative can be displayed in a
__________________________.
5. As we've seen earlier, every point explanatory variable; response variable
on a coordinate plane can be rep-
resented by an ordered pair*, ( x
, y ). Here, the x -value is typically
the _________________variable's value
for a piece of data, and the y -val-
ue is the corresponding value for
the ________________________variable.
A simple way to remember this fact
is that the term "explanatory" has
an " x " in it.
6. Side-by-side box plots are a Categorical
good choice for two-variable data
where the explanatory variable is Quantitative
____________ data and the response
variable is ____________ data.
7. Which variable, explanatory or re- Side-by-side boxplots can be horizontal or vertical, so
sponse, is displayed on the x -axis either variable (explanatory or response) can be dis-
on side-by-side boxplots? played on the x -axis.
, WGU C784-Statistics Mod 5
Study online at https://quizlet.com/_6uus88
8. A scatterplot is a good choice to dis- Quantitative
play two-variable data that are both
__________ variables.
9. The relationship between the x Correlation
-variable and the y -variable is called
_____________.
10. What determines the location of a A dot is placed on a scatterplot according to its
dot on a scatterplot? x - and y -value.
11. When analyzing a possible relation- Answer: D
ship for two-variable data, if both
variables are categorical, what is the A two-way frequency table is the most appropriate
most appropriate choice to display way to graphically display a possible relationship for
the data? two-variable data, when both variables are categorical.
a) Side-by-side boxplots
b) Scatterplot
c) Bar chart
d) Two-way frequency table
e) Histogram
12. A hospital hires an independent The explanatory variable is patient's starting blood
consulting firm to perform a study pressure. The explanatory variable is a quantitative
about patients with high blood pres- variable.
sure, and the medicine they are
being prescribed. The study is ex- The response variable is the dosage of blood pressure
amining the relationship between medicine they are prescribed. The response variable is
a patient's starting blood pressure also a quantitative variable.
when they entered the treatment
As both the explanatory and response variables are
program and the dosage of blood
Study online at https://quizlet.com/_6uus88
1. When one variable causes change in When one variable causes change in another, we call
another, we call the first variable the the first variable the explanatory variable*.
___________________ variable*.
The affected variable is called the response variable*.
The affected variable is called the
_______________ variable*. In a randomized experiment, the researcher manipu-
lates 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.
2. A two-way table, also known as categorical variables ( C’C )
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.
3. ______________________. These repre- The cells in yellow show joint frequencies*. These rep-
sent the total number of instances resent the total number of instances that fall in both
that fall in both the corresponding the corresponding row and header.
row and header.
For example, data in the "Male" row and "With Autism"
The data in the green cells column counts the number of males with autism.
show _______________________________.
These are equal to the sum of the The data in the green cells show marginal frequen-
number of individuals in the corre- cies*. These are equal to the sum of the number of
sponding row or column. 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
, WGU C784-Statistics Mod 5
Study online at https://quizlet.com/_6uus88
may be helpful to remember that marginal frequencies
appear in the margins of the table.
The bottom, right cell (in both the "Totals" column
and the "Totals" row) measures the total number of
individuals in the study.
4. The relationship between two scatterplot;
variables that are both quan-
titative can be displayed in a
__________________________.
5. As we've seen earlier, every point explanatory variable; response variable
on a coordinate plane can be rep-
resented by an ordered pair*, ( x
, y ). Here, the x -value is typically
the _________________variable's value
for a piece of data, and the y -val-
ue is the corresponding value for
the ________________________variable.
A simple way to remember this fact
is that the term "explanatory" has
an " x " in it.
6. Side-by-side box plots are a Categorical
good choice for two-variable data
where the explanatory variable is Quantitative
____________ data and the response
variable is ____________ data.
7. Which variable, explanatory or re- Side-by-side boxplots can be horizontal or vertical, so
sponse, is displayed on the x -axis either variable (explanatory or response) can be dis-
on side-by-side boxplots? played on the x -axis.
, WGU C784-Statistics Mod 5
Study online at https://quizlet.com/_6uus88
8. A scatterplot is a good choice to dis- Quantitative
play two-variable data that are both
__________ variables.
9. The relationship between the x Correlation
-variable and the y -variable is called
_____________.
10. What determines the location of a A dot is placed on a scatterplot according to its
dot on a scatterplot? x - and y -value.
11. When analyzing a possible relation- Answer: D
ship for two-variable data, if both
variables are categorical, what is the A two-way frequency table is the most appropriate
most appropriate choice to display way to graphically display a possible relationship for
the data? two-variable data, when both variables are categorical.
a) Side-by-side boxplots
b) Scatterplot
c) Bar chart
d) Two-way frequency table
e) Histogram
12. A hospital hires an independent The explanatory variable is patient's starting blood
consulting firm to perform a study pressure. The explanatory variable is a quantitative
about patients with high blood pres- variable.
sure, and the medicine they are
being prescribed. The study is ex- The response variable is the dosage of blood pressure
amining the relationship between medicine they are prescribed. The response variable is
a patient's starting blood pressure also a quantitative variable.
when they entered the treatment
As both the explanatory and response variables are
program and the dosage of blood
