odds that a particular number will fall on flop

[Anadrol 50]

What are the odds that a given number (4 cards) will fall on the flop. Not taking into consideration any other cards. Please include how you figured out.


Thanks

[BruceZ]

[ QUOTE ]
What are the odds that a given number (4 cards) will fall on the flop. Not taking into consideration any other cards. Please include how you figured out.


Thanks

[/ QUOTE ]

1 minus the probability of it not falling:

1 - (48/52 * 47/51 * 46/50) or 1 - C(48,3)/C(52,3) =~ 3.6-to-1.