设X1,X2,…,X7是总体X~N(0,4)的简单随机样本,求P
考试:国家电网招聘
科目:其他工学类 (电网)(在线考试)
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![](/timu/file/16702027_0.png)
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设X1,X2,…,X7是总体X~N(0,4)的简单随机样本,求P
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