Question

a school chooses 3 randomly selected athletes from each of its sports teams to participate in a survey about athletics at the school. what type of sample is this? choose 1 answer: a simple random sample b stratified random sample c cluster random sample d systematic random sample e none of the above

Explanation:

In a stratified random sample, the population is divided into subgroups (strata), and then random samples are taken from each subgroup. Here, the sports teams are the strata, and 3 athletes are randomly selected from each team. This fits the definition of a stratified random sample.

Answer:

B. Stratified random sample