Since the school chooses 3 randomly selected athletes from each of its sports teams, this is a B. Stratified Random Sample.
- A stratified random sample refers to a method of sampling which has to do with the division of a population into strata which are smaller groups. This is done in order to make the sampling easier.
- Stratified Random Sample is different from the Simple Random Sampling where one has to choose from the members. In this case, everyone has an equal chance of being selected.
In this case, since the school chooses 3 randomly selected athletes from each of its sports teams, it means the stratified random sample is used.
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