Consider how the student obtained her sample for her study. If her study was conducted by taking a random sample, explain (in enough detail that someone could follow your directions to obtain the sample) how it could have been done?

The student would have to firstly I identify her population size.

Carefully choosing her sample size in order to  be more effective.

write the population as a list

Give the number of units required in the sample

locate random numbers

then most importantly select the sample she will be working with.

Explanation:

The random sample would be picked without specifying the targeted individuals,only those who are chosen randomly would go through the screening of the results required for the study

can you explain it better

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.