AP Statistics : How to find the chi-square distribution

Study concepts, example questions & explanations for AP Statistics

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Example Questions

Example Question #121 : Statistical Patterns And Random Phenomena

follows a chi-squared distribution with degrees of freedom and through are independent standard normal variables.

If , what is ?

Possible Answers:

Correct answer:

Explanation:

Use the fact that the sum of  squared standard and independent normal variables follows a chi-squared distribution with degrees of freedom.

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