00:01
A student wants to determine if a higher quality diet will improve their grade point average.
00:07
Okay, so here are our variables, and we want to know if diet affects gpa.
00:14
Which variable is the response variable? so there are two, there are three types of variables, let's go over them.
00:20
First we have the independent, also called the explanatory.
00:30
This is what we control.
00:35
Usually.
00:36
If it's an experiment, you control it.
00:38
Sometimes it's observational.
00:40
It's just the x -axis.
00:42
And we think it might affect the dependent, because it is dependent on, or the response variable.
00:51
It responds to.
00:53
So this is what we measure.
00:55
If it's an experiment, we can throw one variable, measure the other, and see how it's been affected.
01:00
This goes on the y -axis when you're plotting out your data.
01:04
So gpa is the response variable here, option d...