The fact that you are using the coin flip analogy where each coin has two variables (heads or tails) to make arugments about statistics that essentially constitute a continuous spectrum of abilities (that being speed among a large sample oi individuals)really indicates to me that your MS in math probably is not worth very much...I may not be able to express these ideas very well in a sound bite but you don't seem to understand the ideas at all.
If you read the first post I made..
the main point I was trying to make was that It was more statistically valid, with the current data, to argue that that Asians and Jews (in America) are smarter than Whites, Blacks and Hispanics than to Argue Blacks are better athletes.....neither of statements do I find actually valid as stats are objective on the surface but prone to the prejudices of interpreptation and construction...
If your MS is from an American University, It is really sad that the MS has not taught you how to think...was it just plug and chug math as we used to call it?