问题如下:
If a Portfolio's SFR is 1.4 and threshold level's return is supposed to be 2%, what is the probability of return less than 2%?
选项:
A.8.08%.
B.30.20%.
C.9.68%.
解释:
A is correct.
Using the table, we get F( -1.4) is 1 - 0.9192 = 8.08%.
等价于求Z<[ RL-E(Rp) ]/ σp,为啥不是Z<[ E(Rp)- RL]/ σp即Z<1.4?