Final answer:
The probability of drawing a blue marble out of the bag is 3) 5/10. Hence, 3) is correct.
Step-by-step explanation:
To find the probability of drawing a blue marble out of the bag, we need to divide the number of blue marbles by the total number of marbles in the bag.
In this case, there are 5 blue marbles out of a total of 10 marbles (5 blue + 2 red + 3 yellow), so the probability is 5/10.
Therefore, the answer is option 3) 5/10.