How do I figure out the probability?

Question

ok, I have 50 playing cards and 25 are dealt to one person and 25 to another, how do I make an organized list to show all the possible combinations of cards?

Answer 1

do the math! 50 cards altogether. 4 of each card. 25 to each person. 25 times 2 is 50 divided by 4 is about 10. so there is about 10 possibilitys.

Answer 2

If you have n objects and chose r of them, the number of combinations is:

n! / ( r! (n-r)! )

this can be written as nCr

there are 50 C 25 = 1.264106e+14 combinations... why would you want a list of this many combinations?

Answer 3

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tree diagram?