Question

Lisa has a bag of 30 beads to make jewelry. there are an equal number of orange, green, and blue beads. lisa chooses a bead randomly from the bag. what is the probability that she will choose a green or a blue bead.

Answer 1

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,

`(30)/(3)=10`

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,

`\begin{gathered} \frac{Number\text{ of gre}en\text{ beads}}{\text{Total number of b}eads}=(10)/(30) \\ =(1)/(3) \\ =0.33 \end{gathered}`

Thus, the probability of selecting a green bead from the bag is 1/3.