Question

Identify which type of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine customer opinion of their check dash in service​, American Airlines randomly selects 70 flights during a certain week and surveys all passengers on the flights. Which type of sampling is​ used?

Answer 1

Answer: random sampling

Explanation:

• In statistics, a random sample refers to a subset of the population surveyed by the researcher , selected in a way such that all the individuals in the population has an equal probability to get selected.

Given : To determine customer opinion of their check dash in service​, American Airlines randomly selects 70 flights during a certain week and surveys all passengers on the flights.

Here probability for each flight to get selected is equal.

Therefore, a random sampling is used here.