00:01
Here's a solution to the faculty and students problem.
00:03
The first part, we're going to just draw a quick scatter plot.
00:05
I'm going to use technology for that.
00:06
So if we go to stat and then edit, you can type in your data values there.
00:10
So here you have faculty, here you have students.
00:13
And then go to second y equals.
00:14
Just make sure that first stat plots on with the scatter plot.
00:17
And if you graph it, you probably don't see it.
00:19
So if you go to zoom 9, you can see it.
00:22
So it looks kind of sort of linear, i guess.
00:25
Linear enough probably.
00:26
But let's go ahead and find out for sure.
00:27
Go to stat and cal.
00:29
And let's see if this is a linear regression situation here.
00:34
So let's go ahead and calculate.
00:35
And the r is what we're looking at.
00:37
So 0 .812.
00:38
And then the r squared is also important...