To determine customer opinion of their pricing , Home Depot randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines. What type of sampling is used?

Answer: Cluster sampling

Step-by-step explanation:

A cluster sampling is a kind of random sampling technique in which the researcher splits the whole population into distinct sets known as clusters.

After that, he choose a random sample of clusters from the population and do analysis on it.

In the given situation, the objective of survey : "To determine customer opinion of their pricing:".

He first divides the number of check out lines according to weeks and randomly selects 140 check out lines during a certain week and surveys all customers in the check out lines ...

(Here, check out lines = clusters)

Therefore, the type of sampling is used = Cluster sampling

Cashier ask certain questions as customers are checking out