A bag contains 3 red marbles, 5 yellow marbles, and 4 blue marbles. One marble is chosen at random. What is the probability that the chosen marble will be blue?
A. 1/12
B. 1/4
C. 1/3
D. 3/4
A bag contains only red marbles and white marbles. Tanya reached into the bag without looking, got 40 marbles, and found that 24 of the marbles were red. Tanya is going to reach in the bag again and get one more marble. What is the experimental probability that the marble will be red?
A. 3/5
B. 3/4
C. 2/5
D. 1/2