An airline that wants to assess customer satisfaction chooses a random sample of 10 of its flights during a single month and asks all of the passengers on those flights to fill out a survey. This is an example of a

) Cluster sample.

Step-by-step explanation:

Here are the options

A) Multistage sample.

B) Stratified sample.

C) Cluster sample.

D) Simple random sample.

E) Convenience sample.

A cluster sample is when a population is divided into groups known as clusters. Samples are then randomly selected from this sample. It is a method of probability sampling used for large populations.

The airline first divided the population of travellers by months travelled. this is the cluster. From within the cluster, 10 samples are then chosen

Advantages of a cluster sample

Disadvantages of a cluster sample

it has the same slope and a different y-intercept

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