It is 4/52, which can be simplified.
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There are 4 nines and 4 twos, eight cards with the required outcome. So the probability of a nine or two is 8/52 = 2/13 or 15.38%
There are 52 cards in a deck and 12 face cards (J,Q,and K) so probability is 12/52 = 3/13
0.0769
No - 4 is a factor of 52, but 52 is a multiple of 4.
52 divided by 4 is 13.