有關報酬率相關係數 - 證照

By Heather
at 2017-04-18T14:46
at 2017-04-18T14:46
Table of Contents
在寫考古題時,遇到下題:
由兩種股票組成的投資組合圖形中,當其報酬率相關係數等於多少時,
其各組合點為一直線?
A.0
B.0.5
C.1
D.-1
答案是C,可是以我的理解,答案不是應該是-1嗎?
求各位大神幫忙解惑,感謝。
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