00:01
All right, you know, this problem we are wanting to give some labels to some variables here.
00:06
Now we want to classify first as either categorical or numerical.
00:12
Categorical is whenever it's just some type of quality.
00:15
Sometimes you'll hear this called qualitative.
00:18
Numerical is whenever there's a number involved and that number has to have numerical significance.
00:24
Like an id number does not count as numerical because it's really just an id.
00:28
It's just like a name essentially.
00:30
Okay, but how many hours of tv watch per day? that would be numerical because that number actually does mean something.
00:37
Now, we begin with age.
00:39
Age is, of course, numerical because it has a number that does matter.
00:45
And then this is also a continuous numerical because it can be thought of as being on a spectrum.
00:53
And so since it is on a spectrum, that makes it continuous.
00:56
It's not countable.
00:59
Now, then we have sex.
01:00
That, of course, would be categorical, either male or female...