Random Sampling and Data Collection

AP Statistics· difficulty 1/5

A school has 500 girls and 500 boys. To survey opinions on a dress code, the principal takes an SRS of 50 girls and an SRS of 50 boys.

500 Girls 500 Boys SRS 50 SRS 50 Combine: sample of 100

Which sampling method is used?

  • A

    Stratified random sample

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  • B

    Cluster sample

  • C

    Simple random sample

  • D

    Convenience sample

Explanation

The population is divided into homogeneous groups (gender) and an SRS is taken within each - stratified random sampling.

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