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【单选题】
在单因素方差分析中,用于度量自变量与因变量之间关系强度的统计量是 R 2 ,其计算方法( )。A.
R 2 =组间平方和/组内平方和
B.
R 2 =组间平方和/总平方和
C.
R 2 =组间方差/组内方差
D.
R 2 =组内平方和/总平方和
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