Good morning
Tell me if this is mean sorry but it is evening
<span>Scientists use the SI system so they can compare information all over the world. They don't need to convert any units because people all over the world use it. Also, it's more accurate than the English system.</span>
The correct word you are looking for is Collectivization
Answer:
a. students
Explanation:
Observational units are the entities whose characteristics we measure. Although in some cases, the observational units are the same as the experimental units, this is not always the case. In this case, the entities that are beong observed and examined are students. This is because the survey designed was given to 50 students in an introductory statistics class.