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)
Responses
25
Start Fraction 2 over 5 End Fraction
1
1
35
Start Fraction 3 over 5 End Fraction
720
Start Fraction 7 over 20 End Fraction
The theoretical probability of picking a green marble can be calculated by dividing the total number of green marbles by the total number of marbles in the bag.
Total number of green marbles = 12
Total number of marbles in the bag = 5 (pink) + 7 (red) + 12 (green) + 2 (blue) + 4 (black) = 30
12 green marbles รท 30 total marbles = 2/5
Therefore, the theoretical probability of picking a green marble is Start Fraction 2 over 5 End Fraction.