Question

You choose a marble at random from a bag containing 8 brown, 6 yello, one purple. You replace the marble then choose again. Find P (both yellow)

Answer 1

P(6/15•6/15)=36/225=4/25

Answer 2

P(both yellow) :
{6/(8+6+1)}^2
= 4/25
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.
P(both yellow) = (6/15)^2 = 36/225=4/25 ANSWER IS 4/25