Question

Identify the sampling method used:

A random sample of 10 people from each of three different age categories were selected and asked how they would rate a new television show.

Answer 1

Using sampling concepts, it is found that a Stratified sample was used.

Samples are 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. However, only some elements of each group are surveyed.

In this problem, the population is divided into groups, according to the three different age categories, and then 10 people from each category is selected(that is, not all members), hence it is a stratified sample.

A similar problem is given at https://brainly.com/question/23106151