Answer
$\frac{4}{13}$
Work Step by Step
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 12 tiles that are yellow, and 39 in total. When we divide 12 by 39, we get $\frac{4}{13}$, which is the probability of drawing a yellow tile, or $P(\text{yellow})$.
