Mathematics
Senior High
Resolved
一維數據分析
請問有人會這題嗎？
為什麼答案是10根號2呢？
5.受到出生率劇降問題的影響,據調查,某幼稚園學生數過去5年來每年都減少
10人,則這5年學生數的標準差為
【4-1 一維數據分析]
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