Question

A researcher for an airline interviews all of the passengers on five randomly selected flights. Identify which sampling technique is used.. 1). Stratified. 2). Convenience. 3). Cluster. 4). Random

Answer 1

Hello!

This kind of research is denominated  "cluster" research.

Number 3, then.

Hugs!

Answer 2

Answer: 2) Cluster sampling

Step-by-step explanation:

Cluster sampling is a type of sampling technique in which the researcher divides the entire population into separate clusters (groups).

Then he select a simple random sample of clusters from the population.

Given : A researcher for an airline interviews all of the passengers on five randomly selected flights.

Here flights are the clusters .

Therefore the sampling technique is used : Cluster sampling