[adammarples]

I'm sorry but if I give you a measuring tape that goes to 2 decimal places and you measure a piece of wood at 7.23 cm, when you get a more precise tape you have no information at all about what the third decimal place will turn out to be. It could be anywhere between 7.225 and 7.235, there is no expectation that it should be nearer to the centre. All true lengths between those two points will return you the same 7.23 measurement and none are more likely than any other given what you know.