Random Sampling and Data Collection

AP Statistics· difficulty 1/5

A teacher places all 28 of her students' names in a hat, mixes them, and draws 5 without replacement to form a focus group on classroom climate.

28 names in a hat (well mixed) Draw 5 without replacement Focus group of 5 Each subset of 5 equally likely

What sampling method is this?

  • A

    Cluster sample

  • B

    Simple random sample

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  • C

    Stratified sample

  • D

    Convenience sample

Explanation

Drawing names from a thoroughly mixed hat without replacement gives every group of 5 students an equal chance of selection, the definition of an SRS.

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