WGU C784-Statistics Mod 5 written solution

WGU C784-Statistics Mod 5 written solution
When one variable causes change in another, we call the first variable the ___________________
variable*.
The affected variable is called the _______________ variable*. - >>>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. - >>>categorical variables
( C→C )
______________________. 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. - >>>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.