Chapter 13 - Probability - 13-1 Experimental and Theoretical Probability - Practice and Problem-Solving Exercises - Page 827: 12

$\frac{2}{11}$

To calculate probability, we need to divide the number of chances for a certain outcome to occur by the total number of outcomes. In this case, there are $2$ tiles with the letter "P" and $11$ tiles in total. When we divide $2$ by $11$, we get $\frac{2}{11}$, which is the probability of drawing "P."