00:01
Okay, so we're given two questions here.
00:02
In the first one, we are asked to identify each variable as either qualitative or quantitative.
00:07
Okay? so in order to understand, well no, we'll go over the second question too.
00:11
And the second one they're asking us how to qualify if the others, and the second question are continuous or discrete.
00:17
And so i'll knock out two birds with one stone.
00:19
We're going to go over our variable types, okay? so we have our variables, right? now, our variables, they can be qualitative or quantitative.
00:42
Okay.
00:44
So, our qualitative variables, these are variables that stem from human judgment, right? so they're objective, not objective, they're subjective measures, sorry.
00:57
So there are things that are just based off the things that can be argued and contested.
01:02
And they're things that we can't really say, this is what it is and it doesn't matter what you say about it, okay? this is something that's based on emotions and judgment and experiences, things like that.
01:12
That.
01:13
That's a qualitative variable.
01:15
Now, our quantitative variable is our objective numerical data.
01:20
These are things like weight, time spent on a site, weight, height, temperature, you know, stuff like that.
01:32
And those are the two main categorizations we have for our variables, but within the quantitative realm, we can get a little more specific than that, right? so the numbers that we get from our quantitative variables that can make our variable either continuous or discrete.
01:49
Okay? so if we're going to deal with the idea of a continuous variable first, continuous quantitative variable first, if we're dealing with something that's continuous, we can think of it while illustrated with this example.
02:03
Let's say we have an item, that item, when i give it to you on a certain scale, so let's say you go out and you get like the cheapest scale you can find.
02:10
Let's say that that item is 5 .8 pounds, okay? and that that that item is 5 .8 pounds.
02:13
Okay.
02:15
And that that's what that scale gives you.
02:17
But let's say i give you a more sophisticated scale.
02:20
And instead of 5 .8, you get 5 .879501, whatever.
02:29
Okay? the idea that a measurement for one object can potentially give you different values, depending on the precision of the instruments that you're using, this is what creates what's known as a continuous variable.
02:44
It's a variable that can be quite honestly anything.
02:46
And in some cases it's really only limited by the precision of the instruments that we're using.
02:51
Okay? that's what a continuous variable is.
02:54
Now, discrete variable is something quite different, right? so let's say that, you know, let's say we're selling tickets.
03:08
Let's say we have 500 tickets to sell, and that we have certain blocks we can sell them within.
03:14
Okay? so within each of those blocks, you're going to be selling a set amount of tickets, right? and there are, limits on what this number can be.
03:23
You can't sell 0 .25 of a ticket during one of the times that you're supposed to be selling them, right? and you can't sell 600 tickets during one of these times because that's impossible.
03:34
You only have 500 tickets to sell.
03:38
So we know that the number of tickets we sell during any of these given hours has to be at least zero and has to be at most 500 at any given time, right? and if we do get 500 here, then we can't get it here or there.
03:55
And the point i'm trying to get across with this example is that what our discrete measures can be are limited by reality.
04:04
Okay? this is, we're not dealing with the precision of measurement here.
04:08
In this case, we're dealing with something that depends on what can actually happen.
04:12
Like, what's possible? like, you know, if i gave you two tickets to sell, you can't magically sell four.
04:17
That doesn't make any sense.
04:18
Okay? and that's the main distinction between continuous and discrete variables.
04:22
Now that we have that in mind, we can put our discussion continuous and discreet on the back burner while we do the first question, but we will come back to it later.
04:32
So for our first question, they're just asking us to classify as qualitative or quantitative, which is easy enough.
04:37
It's just qual or quant.
04:38
Which one is it? so in this case, part a, they're asking us for our favorite holiday.
04:44
That's fun to be qualitative.
04:45
It's just your opinion on what your favorite holiday is...