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
The theoretical probability of picking a green marble can be calculated by taking the number of favorable outcomes (number of green marbles) divided by the total number of possible outcomes (total number of marbles).
Number of green marbles = 12
Total number of marbles = 5 (pink) + 7 (red) + 12 (green) + 2 (blue) + 4 (black) = 30
Theoretical probability of picking a green marble = Number of green marbles / Total number of marbles
Theoretical probability of picking a green marble = 12 / 30
Theoretical probability of picking a green marble = 0.4 or 40%
Wrong
I apologize for the mistake. Let me recalculate the theoretical probability of picking a green marble.
Number of green marbles = 12
Total number of marbles = 5 (pink) + 7 (red) + 12 (green) + 2 (blue) + 4 (black) = 30
Theoretical probability of picking a green marble = Number of green marbles / Total number of marbles
Theoretical probability of picking a green marble = 12 / 30
Theoretical probability of picking a green marble = 0.4 or 40%
Therefore, the correct theoretical probability of picking a green marble is 40%.