00:01
So for this problem, what i'll do is first address the different levels of measurements, and then i'll just briefly comment on the justification for the answer for each one of these.
00:12
So first of all, for the nominal level of measurement, we can think of that as name or category.
00:26
For ordinal, we can think of that as ranked in the sense of, this is most easily understood as for instance, in instance, private, corporal, general, in the sense of military ranks.
00:51
Those are still names, but they have an inherent ordering to them.
00:57
Interval, this is a numerical measurement, numerical with constant distances, most easily be thought of as counts or numbers, or counts slash numbered.
01:26
For instance if you're counting the number of trees and then for ratio that is numerical with a defined zero value so for number one temperature of patients with pneumonia that is a ratio value because well you could have zero degrees celsius or zero fahrenheit or even zero kelvin for number two age at which the average female marries that would be oh pardon me i need to correct something here for an interval value actually it's more clear to think of or pardon me for ratio values it's more clear to think of this as numerical and it can never fall below zero whereas for interval there is no true zero in the sense of the idea that interval is something where you can meaningfully go below zero.
02:58
So actually, number one regarding temperatures should be interval.
03:05
Number two, age should be ratio.
03:10
Number three, client satisfaction would be ordinal because, well, there is an ordering to those different categories...