Statistics

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The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias.
A. A randomly selected group of 10 book sellers

B. A randomly selected group of 30 junior high students

C. A randomly selected group of 30 junior high students leaving the public library

D.

The group of 30 junior high students attending the birthday party of the
researcher’s child



id it D

  • Statistics -

    No.

  • Statistics -

    Then the only one making sense to me is C

  • Statistics -

    But students coming out of a library presumably read mostly library books.

    What about B?

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