The principal at Marina Middle School wants to determine if the 120 students in the seventh grade prefer to visit the aquarium or the scienc

Question

The principal at Marina Middle School wants to determine if the 120 students in the seventh grade prefer to visit the aquarium or the science museum for their end-of-year trip. Select all the sets of people that would be a representative sample of the population.
20 sixth-grade students, 20 seventh-grade students, and 20 eighth-grade students
10 seventh-grade boys and 10 seventh-grade girls
25 seventh-grade students
15 seventh-grade boys and 5 teachers
25 students from the school

help me solve this please

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Philomena 3 years 2021-08-13T13:54:47+00:00 1 Answers 103 views 0

Answers ( )

  1. lethu
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    2021-08-13T13:56:03+00:00
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    Answer:

    10 seventh-grade boys and 10 seventh-grade girls

    25 seventh-grade students

    Step-by-step explanation:

    Sampling

    This is a common statistics practice, when we want to study something from a population, we find a sample of this population. This sample has to be representative.

    In this question:

    Students in the seventh grade prefer to visit the aquarium or the science museum for their end-of-year trip.

    So the sample would have to contain only students from the seventh grade. So the correct options are:

    10 seventh-grade boys and 10 seventh-grade girls

    25 seventh-grade students

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