問題詳情
(2)樣本標準差爲√a分，則a値爲何？（5分）（a以四捨五入法取至整數） (樣本標準差
)
)
參考答案
答案：B
難度：簡單0.815789
統計：A(41),B(217),C(0),D(0),E(0)
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