not necessary

来源: 于 2012-09-01 23:36:29 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

 

it's not bad if I could be right 4 time out of 10.  e.g.

Out of 100 trades, 60 are losers with average loss of 15%; 40 are winners with average win of 60%.

what's my return, hehe?