Morseman
Navicache Guru
Group: Members
Posts: 215
Joined: Nov. 2001 

Posted: Jan. 11 2003,3:27 pm 

Quote  If, as I suspect, one GPS receiver will perform better on some of the caches and the other receiver will perform better on the others, then flip a coin to decide which to keep. Both receivers are probably operating within spec and neither one is more accurate than the other, even though they don't always agree. 
I'd go with the 'flip a coin' idea. You have a 50/50 chance of getting the "right" one, and either could be as good, or bad, as the other.
The problem is one of chance.
The fact is that, every time you go out there's a 50/50 chance that one or the other will seem more accurate. Because of this, it may appear that one is more accurate than the other every time you go out. Neither of the units has a memory, the starting point is the same for each every time you go.
In fact, neither is better, nor worse, than the other, but one appears to be better because you think it is.
Consider a coin, every time you flip it there's a 50/50 chance it will land head side up. If you flip it 3 times and it comes up heads, would you put your money on tails a fourth time? If you do, you still have a 50/50 chance of winning, and it could still come up heads. In fact, it could go on being heads for another 100 times, because each time you throw it in the air, there's a 50/50 chance it will be heads.
Edited by Morseman on 
 ... ... Morseman
