The population for this case of sample selection of seventy-five students is given by: Option B. All juniors at the high school. Also, the sample is those seventy-five selected students.
What is population and what is sample?
Population is the entire targetted group about which we want to do our analysis. (example, if the population is too big, or destructible, etc)
Most of the times, it isn't possible in real world to work on entire populations. Samples come out for rescue by assumptions that they will have some properties of the population pertained in them.
Thus, the sample should be taken out such that it includes data of the population as much as it can in unbiased way so as to imitate population.
What is simple random sampling?
If the sampling is done from the population randomly, without any other rule, then such sampling is called simple random sampling. Items are selected in a fixed size, all randomly.
For this case, the sample was taken from "the junior class at a high school "
As a sample is taken from population, and the sample was taken randomly only from the junior class at the considered high school, so the population is All juniors at the high school. unless the person doing the survey is doing mistake of thinking of some other population, and taking sample not correctly.
Thus, the population for this case of sample selection of seventy-five students is given by: Option B. All juniors at the high school. Also, the sample is those seventy-five selected students.
Learn more about sampling here:
https://brainly.com/question/24842573
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