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A two-way analysis of variance has r levels for one variable and c levels for the second variance with 2 observations per cell. The degree of freedom for interaction is :
A) 2(r)(c)
B) (r-1)(c-1)
C) rc-1
D) 2(r-1)(c-1)
A) 2(r)(c)
B) (r-1)(c-1)
C) rc-1
D) 2(r-1)(c-1)
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蚂蚁 (威望:8) (广东 深圳) 咨询业 咨询顾问
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还是中文看这舒服，毕竟是5000年的东西。。。。