Given Data:
The total number of beads in the bag is: 30
The number of orange, green and blue beads in the bag are equal.
Thus, the number of green beeds in the bag is,
[tex]\frac{30}{3}=10[/tex]Thus, there are 10 green, 10 orange and 10 blue beads in the bag.
The expression to calculate the probability of selecting a green bead from the bag is,
[tex]\begin{gathered} \frac{Number\text{ of gre}en\text{ beads}}{\text{Total number of b}eads}=\frac{10}{30} \\ =\frac{1}{3} \\ =0.33 \end{gathered}[/tex]Thus, the probability of selecting a green bead from the bag is 1/3.