BB/100 variations question !

[kinghippo423]

I was wondering this and, even if my question is maybe to general, I hope to get somekind of a answer from you guys.

If I have BB/100 of 6 after 10K hands, what is the range of my actual REAL BB/100 in the long run? Variation of 6? [0,12]

How about 25K hands? 4?
How about 50K hands? 3?
How about 100K hands? 2?

I ask this question to be able to go up a limit with, in theroy, a good confidance factor of beeting the upper limit without playing hundreds thousands hands.

Thanks a lot guys.