The probability that both marbles drawn will be blue is approximately 9%.
How to find the probability ?
Calculate the probability of drawing the first blue marble: There are 4 blue marbles out of 12 total marbles, so the probability of drawing a blue marble on the first draw is 4/12.
The probability of drawing a blue marble on the second draw, without replacement, is 3/11.
To find the overall probability of both events happening, multiply the probabilities from steps 1 and 2 together:
= (4/12) * (3/11)
= 12/132
= 1 / 11
= 9. 09 %
= 9 % to the nearest percent