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Unit 4: Probability, Random Variables, and Probability Distributions
Quick questions on Mean and standard deviation of random variables - AP Statistics Unit 4
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
has , , . Find . [2 points]
What is q2?Show answer
Explain why an expected value of can be valid even though never equals . [1 point]
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