Question

2.A container holds marble . A marble will randomly selected from the bag.

-!7 red marbles
-8 blue
-16 green
-9 black
What is the probability in decimal form that the selected marble will be green or black.

Answer 1

To find the probability of selecting a green or black marble, we need to add the number of green marbles (16) to the number of black marbles (9) and divide by the total number of marbles (7 + 8 + 16 + 9 = 40). So the probability is:

(16 + 9) / 40 = 0.625 or 62.5% in decimal form.