00:01
Which of the following variables are qualitative and which are quantitative and then which qualitative variables are nominal or ordinal and which quantitative variables are discrete or continuous.
00:20
So number 1, time to finish an examination.
00:36
So our first four examples are all quantitative.
00:44
So time to finish an examination, amount of water in a glass, master card number, and the number of students in a class of 32 who turn in assignments on time.
00:54
Those are all quantitative.
00:56
So now to determine whether it's discrete or continuous.
01:01
So time to finish an exam and amount of water in a glass would be continuous, whereas the master card number would be an example of discrete and the number of students in a class who turn in assignments on time.
01:22
That would be discrete because we wouldn't be able to we wouldn't be able to divide that into a fine increment.
01:34
It would be a whole number.
01:37
So we can't split that up into a subdivision past a whole number.
01:47
Now if you look at number 5, number 5 is qualitative.
01:56
Because it's not a numerical representation.
02:00
So brand of a personal computer is a qualitative measurement.
02:06
So is it nominal or ordinal? well nominal has no inherent order or ranking sequence where ordinal could be.
02:19
So this would fall into the nominal.
02:26
And now if we look at 6, amount of fluid.
02:32
That's quantitative.
02:33
7, number of graduate applicants is quantitative.
02:38
8, amount of time is quantitative.
02:40
Room temperature is quantitative.
02:43
And 10, the weight of letters to be mailed.
02:46
Those are all quantitative data.
02:49
To determine if they're continuous or discrete, we want to look at the concept of could they be broken down into subdivisions into smaller fractions or parts.
03:01
So the amount of fluid that's continuous.
03:07
For number 7, the number of graduate applications.
03:10
That's going to be discrete.
03:13
Number 8, the amount of time required to drive a car.
03:16
That's continuous.
03:19
Number 9, room temperature...