Originally posted by: skull
	
	
		
		
			Originally posted by: FallenHero
	
	
		
		
			Originally posted by: Quintox
BA never means anything to me, I don't understand what the numbers mean.  Well I do but I don't.  I need a reference like the OP had
		
		
	 
Its the percent of your blood that is actually alcohol.  .1 means .1 % of your blood is alcohol.
		
 
		
	 
Its decimals into a percent .1 is 10%
		
 
		
	 
I see what you did.  .1 is 10% of 1, and when you are dealing in probability, 1 = 100%.  It's like when you want to find a percentage on a calculator and multiply the number by a decimal.  When you want to know 22% of 145, you multiply 145 X 0.22
However in this case the decimal is not representative of a probability percentage, the decimal is the actual percentage of alcohol in the blood, no conversion necessary.
So you had a brainfart.  It's ok.  Obama said in a speech that there were 57 states and he was the editor in chief of the Harvard Law Review.  Keep your chin up.