Marnie conducted an experiment using a bag of 12 marbles containing an equal number of blue, red, and green marbles. She randoml
y chose one marble, noted the color, and returned the marble to the bag. Marnie did this for a total of 20 trials. The table below shows the results. Event
Count
Blue
7
Red
8
Green
5
What was the experimental probability of choosing a blue marble from a bag?
StartFraction 7 over 20 EndFraction
StartFraction 7 over 13 EndFraction
StartFraction 7 over 12 EndFraction
