Howdy folks, apologies for being a little late but; I just got lost in thought
.. It was unfamiliar territory for the most part, but then; 42.7 percent of all statistics are made up on the spot. Which is why, 99 percent of lawyers give the rest a bad name.
Mark:
CARDS
Do you want the probability of at least one matching pair or exactly one matching pair. The former is:
1 - (51*50*49*48*47*46*45*44*43)/52^9 = 0.603
That will do very nicely!
For the latter:
Spades, Clubs, Hearts, Diamonds: 4 choose 1--- C(4, 1) = 4
Spades---[C (10,2) <choose 2 persons
(13/52) <13---spades random
(1/52) <second person only one choice
(51/52)^8] <the other 8 cannot choose this
Therefore: 4 [C(10, 2)(13/52)(1/52)(51/52)^8]
Or maybe not!
CMAHIDNEA = made in china
Howdy Etc <Waves> Drawing is good; I have never met an artist I didn't like.
As for myself; I am just doing what I do, which is not that unusual because that is what I usually do and if I didn't do it; it would indeed be unusual. However, I can't draw for toffee!
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CAN CAN PLAY