00:01
In this question, we need to use the given statement to find out the sampling technique used and identify the population for each of the following scenarios.
00:11
So i will first write down for part a.
00:14
It is given that a telephone survey is done using numbers randomly selected from a stores database.
00:22
So first of all, i will write down my technique here.
00:24
So the technique is random sampling correct.
00:30
It is the random sampling and then i will write here the sampling units are selected at random units are selected at random and each unit of population and each unit of population has an equal chance of has an equal chance of being included in it.
01:17
So this is what we say as the random sampling.
01:23
Now we have to write the population as well.
01:25
So in this case, i will write down the population.
01:28
Here is the store database.
01:33
That is the population...