misstulip2008 发表于 2014-6-29 20:39
在data stat里面，有Sx = sample standard deviation, 和Sigma x = population standard deviation, 他们的 ...

bryanmbsking 发表于 2014-6-29 20:52
in mfe , use Sx only when u getting the volatility.

u wont use sigma x at all.

misstulip2008 发表于 2014-6-29 21:33
在monte carlo valuation, control variate method with Boyle modification, 里面，计算beta时候需要用到 ...

bryanmbsking 发表于 2014-6-29 21:54
no nid , when get Beta , use 2nd stat 2 , L1 X L2 Y scroll to the ' a '  , thats ur beta