00:01
So i used my software and i entered the number of lovers into my list one and into my list two, the gpa.
00:10
Kind of an interesting little study.
00:12
And i got this for the linear regression line.
00:15
The y intercept is 3 .45 and we have the slope to be negative point two and i'm just going to round it to 9x.
00:25
And then you asked, or they asked, what would this model predict if someone had had three lovers? and i'm actually going to use more decals than this.
00:35
I'm going to go to my variable, statistics, eq on my calculator, and use the model that they have and just substitute in three.
00:46
But basically, it's going to say that the gpa is going to be about 2 .58.
00:52
That's what it's going to predict if we plug three in place of x.
00:55
Now, if we want to look at the slope, the slope is this negative .29, and the slope is the change in y, which is gpa, over the change in x, which is the number of lovers.
01:10
Now, the denominator of this is like a one, and so you have one that says for every increase in one lover.
01:19
Every one lover increase causes the gpa to decrease by .29...