Robb's 3000th Post

Originally Posted by Robb

• Flush (no straight flushes) = (3c1 * 13c5 - 30) / 39c5 = 5118 / 575757 ~ .89% (standard deck is .20%)

Found a typo in the 3-suit frequencies: the formula is correct, but the result should be 0.67%

Also: Is the numerator for the straight flush eq's based on:
10c1 * [n]c1
where [n] is the number of suits, or are there missing terms (all of which are 1, so moot)?