Xeno 

trendisyourfriend 

The Market Profile methaphor goes much deeper then just knowing where is the second standard deviation. I highly recommend you to visit this page to uplevel your perspective about this tool. Articles by James Dalton | Free resource to understand Market Profile and James Dalton’s approach | James Dalton Trading

I do actually understand roughly what market profile is about, I was more making a comment on the OP's implication that statistical maths gives it credibility when he clearly hasn't used stats to analyse the results.