【单选题】AR(p)过程的自相关系数(ACF)和偏自相关函数(PACF)的特征分别是( )。
【简答题】如图,在△ACF和△DBE中,AF=ED,AB=DC,要使△ACF≌△DBE,则还需增加一个条件是______.
【单选题】MA(q)过程的自相关系数(ACF)和偏自相关函数(PACF)的特征分别是( )。
【简答题】如图,在△ACF和△DBE中,AF=ED,AB=DC,要 使△ACF≌△DBE,则还需增加一个条件是( )。
【单选题】将因变量的值扩大10,将自变量的值同时扩大100,则:
【单选题】Questions 36--40 Do the following statements agree with the information given in Reading Passage 3? In boxes 36-40 on your answer sheet write TRUE——if the information in the text agrees with the state...
【简答题】Given the ACF and PACF
illustrated by the figures below, we can conclude that the model will require
( )A. moving average terms B. integrated terms C. random error terms D. autoregressive terms
【简答题】填空:如图,作∠ACF使∠ACF+∠A=180° 则 _________ ∥ _________ ∵∠A+∠ACD+∠D=360°(已知) 即∠A+∠ACF+∠ _________ +∠D=360° ∴∠ _________ +∠D=180° ∴ _________ ∥ _________ ∴ _________ ∥ _________ .
【简答题】Given the ACF and PACF
illustrated by the figures below, we can find thatA. autoregressive terms B. integrated terms C. random error terms D. moving average terms