Answer:
[tex]\frac{1}{6}[/tex]
Step-by-step explanation:
12 marbles
6 blue
2 green
3 yellow
1 red
[tex]\frac{2}{12} = \frac{1}{6}[/tex]
There are 2 marbles out of 12 that are green; therefore there is a [tex]\frac{2}{12}[/tex] probability of getting a green one. Simplify the fraction to [tex]\frac{1}{6}[/tex].