6. A ball is selected at random from a bag containing 3 red balls, 4 black balls and 5 green balls. The
first ball is replaced and a second is selected. Find
the probability of obtaining:
(a) two red balls,
(b) two green balls.

a. 1/16   b. 25/144

Step-by-step explanation:

Since the bag does not change each time, the probability stays the same. To get the desired outcome both times, we must square the probability.

the answer is 288..

hope this

i would say c is the best answer, hope it's right!

good luck! =)

cutie~