To find the probability of pulling a red marble from the bag, we first need to determine the total number of marbles.
The bag contains:
- 3 blue marbles
- 5 red marbles
- 6 yellow marbles
The total number of marbles is: \[ 3 + 5 + 6 = 14 \]
The probability of pulling a red marble is given by the ratio of the number of red marbles to the total number of marbles: \[ \text{Probability of red marble} = \frac{\text{Number of red marbles}}{\text{Total number of marbles}} = \frac{5}{14} \]
Thus, the correct response is: \[ \text{Start Fraction 5 over 14 End Fraction} \]