Final answer:
The probability of selecting a blue marble from each bag is 4/135.
Step-by-step explanation:
To find the probability of selecting a blue marble from each bag, we need to multiply the probabilities of selecting a blue marble from each bag separately. Let's denote the events as A (selecting a blue marble from the first bag) and B (selecting a blue marble from the second bag).
The probability of event A is calculated as the number of favorable outcomes (2 blue marbles) divided by the total number of possible outcomes -
(6+5+4 = 15 marbles in the first bag).
The probability of event B is calculated as the number of favorable outcomes (2 blue marbles) divided by the total number of possible outcomes -
(3+2+4 = 9 marbles in the second bag).
Therefore, the probability of selecting a blue marble from each bag is -
P(A) * P(B)
= (2/15) * (2/9)
= 4/135.