Question

You have 25 marbles in a bag. Six are red, 5 are blue, 8 are green, and six are swirls. ON the first draw you get a swirl marble. It is not replaced. What is the probability of getting a swirl out, and then a blue?

Answer 1

There are a total of 25 marbles, and one swirl marble has already been removed, leaving 24 marbles. There are 5 blue marbles remaining in the bag.

The probability of drawing a swirl on the first draw is 6/25, since there are 6 swirls out of 25 total marbles.

Since the marble is not replaced, there are now only 24 marbles in the bag. The probability of drawing a blue marble on the second draw is 5/24.

To find the probability of both events occurring together, we multiply the probabilities:

(6/25) * (5/24) = 1/20 or 0.05

Therefore, the probability of getting a swirl and then a blue marble is 1/20 or 0.05.

Explanation: