16. 某種預測風險(波動度)的模型是假設變異數比率(Variance Rate)是會去向其平均來趨近的 (Mean Reverting),這種模型是所謂的:
(A)ARIMA
(B)OLS
(C)GARCH
(D)Logistic

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統計: A(2), B(2), C(5), D(1), E(0) #2064060