Question

Francisco is playing a game with 3 green, 2 yellow, 4 red, and 3 black marbles in a bag. He has calculated the probability of drawing a yellow marble, not replacing it, and then drawing a red marble. Explain the error in his solution.
(2/12)(4/12)=8/144

Answer 1

Can anyone help..... anyone?

Answer 2

not replacing it?

Answer 3

not replacing it.

Answer 4

help?

Answer 5

As far as I can understand the language, the yellow marble gets drawn when he first seects it so the number of marbles now become one less, i.e 12 - 1 = 11

correct answer should be
2/12 (4/11) = 8/132

Answer 6

Thanks you are correct once more!