Large samples should be more accurate than a small one.
Hello Nac,
Did u studied the Books of VanTharp.......if not Take a look....if u already studied....did u devoloped any model/systems based on his Beliefs or ur Beliefs.
iam a great Fan of Vantharp...
see large Sample will provide u great insight.....but one thing always there in Trading,that is Uncertainity...bcoz market is Dynamic in Nature....(three dimensional)...and Mathematics models/systems are two dimensional....Static in nature.
so...yes ur right ......loosing 9 trades and winning only one trade with 1:13 R/R(risk/reward).u make money.
.....in ten trades...u can make 4 points(13pointswin-9pointsloosing).
in 250 trades...u can make 100 points with this system.....if u get the exactly 9 loosers and a win or a win and 9 loosers...but in reality in a sample of 250 trades there is a possibility of getting 225 loosers in a row and 25 wins... see its totally depend upon distribution of ur sample.thats why it is very difficult to trade and the only reason is dynamic nature of markets.
these kind of calculations are useful for gamblers thats why kelly developed formula's help only for gamblers not for Traders.
in my opinion....the only two Things are important for Traders 1)Psychology
2)Risk-management.
mathematical Calculations are only useful after the fact or when ur result is positive.
Regards,