1. When one variable causes change in another, we call the first vari- able the vari- able*. The affected variable is called the variable*. 2. A two-way table, also known as a two-way frequency table or contingency table, is used to show the relationship between two vari- ables ( C’C...
we call the first vari able the vari able the affected variable is called the variable 2 a two way table
also known as a two way fre
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WGU C784-Statistics Mod 5
WGU C784-Statistics Mod 5
WGU C784-Statistics Mod 5
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WGU C784-Statistics Mod 5
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https://quizlet.com/_6uus88
1. When one variable causes change
When one variable causes
in another, we call the first vari-
change in another, we call the
able the vari-
first variable the explanatory
able*.
variable*.
The affected variable is called the
The affected variable is called
variable*.
the re- sponse variable*.
In a randomized experiment, the
re- searcher manipulates values
of the explanatory variable and
measures the resulting changes
in the response variable. The
different values of the
explanatory variable are called
treat- ments. An experimental
unit is a single object or
individual to be measured.
2. A two-way table, also known
as a two-way frequency table
or contingency table, is used
to show the relationship
between categorical variables ( C’C )
two vari-
ables ( C’C ); the rows show the
categories of one variable, and the
columns show the categories of
the other variable.
3. . These
represent the total number of in-
stances that fall in both the corre-
sponding row and header. The cells in yellow show joint
frequen- cies*. These represent
The data in the green cells show the total num- ber of instances
that fall in both the
corresponding row and header.
For example, data in the "Male" ro
1/
, WGU C784-Statistics Mod 5
Study online at
https://quizlet.com/_6uus88 a.
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number of males with autism.
The data in the green cells show
mar-
2/
, WGU C784-Statistics Mod 5
Study online at
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ginal frequencies*. These are
equal to the sum of the number
of individuals in the
corresponding row or column.
For example, data in the "Totals"
col- umn 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.
The bottom, right cell (in both
the "Totals" column and the
"Totals" row) measures the total
number of individ- uals in the
study.
4. The relationship between two
variables that are both
quanti- tative can be vari- able. A simple way to
displayed in a remember this fact is that the
. term "explanatory" has an " x
" in it.
5. 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
3/
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