To ensure that she obtained a sufficiently large number of minority respondents in a study on racial attitudes, a researcher div
ided the people in her population in to four racial groups. She then drew a random sample from each of these groups. What kind of sample is this?
1 answer:
Answer:
It is stratified random sampling.
Step-by-step explanation:
Stratified random sampling is a method of sampling that involves the division of a population into smaller sub-groups known as <em>strata.</em>
The strata are formed based on members' shared attributes or characteristics, in this case their race.
Stratified random sampling is also called <em>proportional random sampling</em> or <em>quota random sampling</em>
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