PS4 overtracked...

[Protendo]

Ryng_Tolu said:

Wonktonodi said:
for instance sony's internal tracking was 20,280,000 and they felt there internal tracking could be +- 70,000 that would be a range of 20,210,000 to 20,350,000.
So they are confident that it is over 20,200,000 but it could be even more than what are listed here.

...? Sorry but i don't understand... any source?

Source to apply basic statistics?

Think about it this way.

I'm 99.5% sure that the sales fall between value A and value B. I'm going to take the lowest of the values and say I'm over that. Hense the term "over" 20.2 million.