Question

fill in the blank with the appropriate word or phrase.

when a population is divided into parts, called strata, for the purpose of drawing a sample, the procedure is known as a sampling.

options:
systematic
convenience
random
stratified
cluster

Explanation:

Identify the key term in the definition

The question asks to identify a sampling procedure where a population is divided into subgroups called "strata."

Match with standard sampling terminology

Dividing a population into distinct subgroups (strata) and then drawing a sample from each subgroup is the definition of stratified sampling.

Answer:

Fill in the blank with the appropriate word or phrase.

When a population is divided into parts, called strata, for the purpose of drawing a sample, the procedure is known as a <blank>stratified</blank> sampling.