Question

a bag of marbles contains 5 green 4 red and 6 yellow what is la probability of drawing 2 yellow with replacement.

Answer 1

so there's a total of 15 marbles
and there's 6 yellow marbles. thus the probability is 6/15

Answer 2

you want the probability of drawing two marbles, not one

= (6/15)(6/15) with replacement
= 36/225
= 4/25