Question

A researcher for an airline interviews all of the passengers on five randomly selected flights. Identify which sampling technique is used.

A researcher for an airline interviews all of the passengers on five randomly selected flights. Identify which sampling technique is used.(SELECT ALL THAT APPLY)

a)Stratisfied

b)Convenience

c)Cluster

d)Random

1. The sampling technique used for this situation is given by:
c) Cluster.

### How are samples classified?

Samples may be classified as:
• Convenient: Drawn from a conveniently available pool.
• Random: All the options into a hat and drawn some of them.
• Systematic: Every kth element is taken.
• Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
• Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.
In this problem, the population is divided into groups, and each element of the groups are survived, hence cluster sampling was used.
More can be learned about sampling techniques at https://brainly.com/question/16587013
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