Question

A cell phone company wants to determine the average amount of data that their smart phone customers use each month. Which group would best represent a sample of the population? A.one thousand of their customers with the most expensive monthly plans B.one thousand of their customers who most recently signed up with the company C.one thousand of their customers with a current smart phone data plan D.one thousand of their customers who called in for technical support

Answer 1

It would be C because it won't be biased and these people actually use data for sure since they have the plan. A is biased because it only covers those who have expensive monthly plans meaning that they probably use more data than the average person. B only uses those who just signed up with is not enough diversity and same with D. I hope this helps!

Answer 2

The group that would best represent a sample of the population is given by: Option C: one thousand of their customers with a current smart phone data plan

Why do we do sampling?

We do sampling so that we don't have to work on entire population of items but only on that sample in a way that we can predict information about population.

Most of the times, it isn't possible in real world to work on entire populations. Samples come out for rescue by assumptions that they will have some properties of the population pertained in them.

Thus, the sample should be taken out such that it includes data of the population as much  as it can in unbiased way so as to imitate population. (assuming that we want the sample to contain the summary of the population).

We've to collect sample in such a way that we can get a widespread view of the population (all customers). We want to do sampling for getting the average amount of data that their smart phone customers use each month.

Option A, B and D are choosing those customers, which are like a special part of the customers, and not an overall coverage of the customer the cell phone company has.

But option C covers assumingly all sorts of customers who use internet data.

Thus, the group that would best represent a sample of the population is given by: Option C: one thousand of their customers with a current smart phone data plan

Learn more about sampling here:

https://brainly.com/question/9724150