There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag.
What is the theoretical probability of randomly drawing a red marble?
5:25 = 1:5
25%
25%
To find the theoretical probability of randomly drawing a red marble, we need to divide the number of favorable outcomes (red marbles) by the total number of possible outcomes (all marbles).
In this case, the number of red marbles is given as 5. The total number of marbles is the sum of the red, blue, and green marbles, which is 5 + 8 + 12 = 25.
Therefore, the theoretical probability of randomly drawing a red marble is 5/25 = 1/5 or 0.2.