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

sampling techniqueused for this situation is given by:c)Cluster.## How are samples classified?

classifiedas: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.divided into groups, andeach elementof the groups are survived, hencecluster samplingwas used.sampling techniquesat https://brainly.com/question/16587013