A student has a bag of marbles. There are 5 pink, 7 red, 12 green, 2 blue, and 4 black marbles in the bag. Calculate the
theoretical probability of picking a green marble. (1 point)
7
20
1
3
5
2
5
The theoretical probability of picking a green marble can be calculated by the formula:
Number of favorable outcomes / Total number of possible outcomes
In this case, the number of favorable outcomes (green marbles) is 12, and the total number of possible outcomes (all marbles) is 5 + 7 + 12 + 2 + 4 = 30.
Therefore, the theoretical probability of picking a green marble is:
12/30 = 2/5 = 0.4 = 40%