25
QuizMultiple Choice

Sampling and Comparing Populations — Test

Question 25 • Grade 7 Mathematics

Which best describes a random sample?

Answer
A
a sample in which the elements are chosen by chance
B
a sample in which the chosen elements are predetermined
C
a sample in which the chosen elements are removed from the population once they are chosen
D
a sample in which each element of the population is chosen

Explanation

A random sample is selected using chance, so each element’s selection is not predetermined by the person choosing the sample. Therefore, choice A, “a sample in which the elements are chosen by chance,” best describes a random sample.

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