Simple Question

[renolite]

What is the formula to calculate the probability of an ace (or any one card value) being dealt pre-flop based on the number of players?

For example, if we are 10 handed, how do I calculate the probability of there being a single ace dealt pre-flop?
OK, I know this is basic, but humor me please.

Thanks,

[BruceZ]

[ QUOTE ]
For example, if we are 10 handed, how do I calculate the probability of there being a single ace dealt pre-flop?
OK, I know this is basic, but humor me please.

[/ QUOTE ]

One ace or more:

1 - C(48,20)/C(52,20) =~ 86.7%


Exactly 1 ace:

C(4,1)*C(48,19)/C(52,20) =~ 36.7%