【单选题】In the ANOVA table for a multiple regression analysis, the value of k is the:
A.
regression sum of squares.
B.
total number of observations.
C.
total degrees of freedom.
D.
regression degrees of freedom.
【单选题】What does the equation denote if the regression equation is ?
A.
The explained sum of squares
B.
The total sum of squares
C.
The sample regression function
D.
The population regression function
【单选题】高考终于考上了,你会选择下面哪一句诗形容激动的心情?( ▲ ) 。
【判断题】榆林窟内容十分丰富,有场面宏大的巨幅经变画,形象生动的单幅佛像画、装饰图案和种类繁多的奇花异草、飞禽走兽,还有一定数量的当时社会生活、生产、科技等现实画面。涵盖了从唐到元的历代佳作。
【单选题】______ is to check regression faults.
【单选题】放假时无法与家人团聚,你会用哪句诗来形容你的心情?
【单选题】To test the significance of individual regression coefficients:
B.
we test for differences between each pair of regression coefficients.
C.
we usually delete the variables where the null hypothesis is rejected.
D.
regression coefficients with a negative coefficient are deleted from the equation.
【判断题】劳动既是我国公民的一项基本权利,也是义务。()