Question

Lola pulls two marbles fro. A bag that contains four red marbles four blue marbles and 12 yellow marbles without replacing them what is the probability that she pulled out a red marble first and a yellow marble second ?express your answer in decimal form rounded to the nearest hundreth

Answer 1

$|\Omega|=20\cdot19=380\\|A|=4\cdot12=48\\\\P(A)=\dfrac{48}{380}\approx0.13$