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A.The ledger is correct.B.A journal entry is not posted.C.An error or errors have been
A.The ledger is correct.
B.A journal entry is not posted.
C.An error or errors have been made.
D.An entry is posted twice.
A.The ledger is correct.
B.A journal entry is not posted.
C.An error or errors have been made.
D.An entry is posted twice.
A.The balance sheet would be correct.
B.All ledger account balances are correct.
C.All entries from the journal have been posted to the ledger correctly.
D.The total debit entries and total credit entries are equal.
A.corr(Zi, Xi) = 0 and corr(Zi, ui) ≠ 0
B.corr(Zi, Xi) = 0 and corr(Zi, ui) = 0.
C.corr(Zi, Xi) ≠ 0 and corr(Zi, ui) = 0
D.corr(Zi, Xi) ≠ 0 and corr(Zi, ui) ≠ 0
股票之间的相关系数如下:Corr(A,B)=0.85;Corr(A,C)=0.60;Corr(A,D)=0.45。每种股票的期望收益率为8%,标准差为20%。如果投资者的全部资产现在由A股票组成,并且只被允许选取另一种股票组成资产组合,投资者将会选择()。
A.B
B.C
C.D
D.需要更多的信息
(RA,RD)=0.45,每只股票的期望收益率均为8%,标准差均为20%,如果此前投资者只持有了股票A,目前只被允许选取另一只股票组成货币资产组合,那么投资者选择哪只股票才能使得投资组合最优?()
A.选择B股票
B.选择C股票
C.选择D股票
D.需要更多的信息
股票之间的相关系数如下:Corr(A,B)=0.85;Corr(A,C)=0.60;Corr(A,D)=0.45。每种股票的期望收益率为8%,标准差为20%。如果投资者的全部资产现在由股票A组成,并且只被允许选取另一种股票组成资产组合,投资者将会选择()。
A.B
B.C
C.D
D.B或C
A、xtgls lnc lnp lnpmin lny state2-state10 t,corr(ar1) panels(correlated)
B、xtgls lnc lnp lnpmin lny state2-state10 t,corr(psar1) panels(correlated)
C、xtgls lnc lnp lnpmin lny state2-state10 t,corr(ar1) panels(heteroskedastic)
D、以上选项均不正确
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