카이제곱 분포표에서 다음에 해당하는 값을 찾자. 통계표에 나온 숫자를 그대로 적을 것. 아래의 표기법에서는 확률이 자유도 보다 먼저 표기되어 있음.数值题

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Question at position 11 What is the expected value of the sum of 20 independent and identically distributed squared standard normal random variables?AnswerWhat is the expected value of the sum of 20 independent and identically distributed squared standard normal random variables?[input]BlackTom题目解析

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