In a standard deck of playing cards, there are 52 cards in total. The black nines in the deck are the 9 of spades and the 9 of clubs, so there are 2 black nines.
To find the probability of drawing a black nine, you can use the formula:
\[ \text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}} \]
Thus, the probability of drawing a black nine is:
\[ \text{Probability} = \frac{2}{52} = \frac{1}{26} \]
Therefore, the correct response is:
\[ 126 \quad \text{Start Fraction 1 over 26 End Fraction} \]