Question

You choose a marble at random from a bag containing eight brown marbles, six yellow marbles, and one purple marble. You replace the marble and then choose again. Find P(both yellow)

Answer 1

For choosing yellow first time : P = 6/15

Now you have replaced it..

Again for choosing it will be : P = 6/15

Now just add the two probabilities to find P(both yellow).

Answer 2

*Multiply..

I think we will multiply the two probabilities here..

Answer 3

I have corrected it above..:)