AP Statistics : How to do simple random sampling

Study concepts, example questions & explanations for AP Statistics

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Example Questions

Example Question #11 : How To Conduct A Sample Survey

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

Possible Answers:

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

Choosing  students at random from the high school 

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

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

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

Correct answer:

Choosing  students at random from 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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