【单选题】在多元方差分析中,SSE和SS(TR)之和等于总叉积矩阵SST。当SS(TR)在SST中占有较大的份额时,可以认为随机影响( ),不同试验间的观测值( )显著性差异。
【单选题】The first Car Free Day in the world was started in ______ ?
【单选题】“An independent technician” in the first sentence of the second paragraph means
A.
A technician who checks a car free of charge.
B.
A technician who learned his trade all by himself.
C.
A technician who works f10r a particular car-dealer.
D.
A technician wh0 runs his own inspection service.
【简答题】“An independent technician” in the first sentence of the second paragraph means__. A) A technician who checks a car free of charge. B) A technician who learned his trade all by himself. C) A technicia...
【单选题】听力原文:M: If you take the fancy model, we'll throw in the first tank of gas free. W: You've talked us into it. Where do I sign? Q: What does 'it' refer to? (18)
【判断题】耐力运动对增强呼吸系统摄取氧、心血管系统载荷及输送氧的能力,以及组织的有氧代谢利用氧的能力有显著的训练作用。
【单选题】在多元方差分析中,叉积矩阵有SS(TR)、SSE和SST,下列描述正确的是( )。
B.
SS(TR)称为总叉积矩阵,反映全部数据的误差
C.
SSE称为组内叉积矩阵,反映系统因素引起的误差
D.
SS(TR)称为组间叉积矩阵,反映随机因素引起的误差
【单选题】Which of the following is not the extraordinary thing Gruen got for the first time?
A.
Sloping road around the perimeter of the mall.
B.
Free shipping services.
C.
Low balconies of the shops.
D.
Animal signs in car park.