How to do simple random sampling

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AP Statistics › How to do simple random sampling

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1

Which of the following is an example of simple random sampling at a high school?

Choosing students at random from the high school

Choosing students at random from each of four different grade levels at the high school

Choosing students in a random area of the cafeteria at the high school

Choosing students at random from an AP Statistics class at the high school

Choosing students at random from a specific grade level of the high school

Explanation

A simple random sample is obtained by randomly selecting individuals from a target population. Each individual in the target population (i.e. all students at the high school) should have an equal chance of being selected. Only one answer choice gives each high school student an equal chance of being selected: choosing students at random from the high school.

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