Question

A bag of marbles contains 5 red 3 blue 2 green and 2 yellow marbles. What is the probability that you choose a blue marble and then another blue marble, assuming you replace the first marble? (in the answer as a fraction)

Answer 1

3/12 -> 1/4 would be the answer because you have total of 12 marbles to start with but only 3 of 12 is what you need.
you can divide 3/12 by 4 to get 1/4
hope i am correct.

Answer 2

The answer is 1/4
Add all numbers 5+3+2+2=12
3 are blue so
3/12
Simplify
1/4
But dividing both sides by 3