To find the probability that Jenna draws a yellow marble from the bag, we first need to determine the total number of marbles and the number of yellow marbles.
The bag contains:
- 2 blue marbles
- 2 red marbles
- 2 yellow marbles
The total number of marbles is: \[ 2 \text{ (blue)} + 2 \text{ (red)} + 2 \text{ (yellow)} = 6 \text{ marbles} \]
The number of yellow marbles is 2.
The probability of drawing a yellow marble is given by the formula: \[ \text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} \]
Substituting the known values: \[ \text{Probability} = \frac{2 \text{ (yellow marbles)}}{6 \text{ (total marbles)}} = \frac{2}{6} = \frac{1}{3} \]
Thus, the probability that Jenna will pull a yellow marble is \(\frac{1}{3}\).