Ask Question
21 May, 03:32

A national survey of middle-school students asks which subject is most challenging. Which of these samples is a representative sample.

a) 372 sixth-graders in a certain town

b) 972 seventh-graders in a certain country

c) 619 eight-graders in different states

d) 400 students from various states, representing different grades, 6-8

+1
Answers (1)
  1. 21 May, 05:38
    0
    The correct option is D.

    Step-by-step explanation:

    For a research sample to be described as representative, the sample must be a subset of the target population group and it must accurately reflects the features of the target population group.

    In this question, the target population is the middle school students of a country, that is, grades 6 to 8. The survey is a national one, that is, it covers the whole country. In order to obtain a representative samples for this particular survey, samples must be drawn from grade 6 to 8 and the samples must come from different parts of the country. This is why option D is correct.

    The other options are not correct because, the samples are limited to only particular grades or particular towns or states.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A national survey of middle-school students asks which subject is most challenging. Which of these samples is a representative sample. a) ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers