### Home > MC2 > Chapter 2 > Lesson 2.2.4 > Problem 2-78

2-78.

Linh has a bag of beads that contains *2-78 HW eTool*

Metal bead?

Determine the number of beads in the bag.

Divide the number of metal beads by the total number

Bead that is not plastic?

Use the same method as part (a).

Glass or plastic bead?

Use the same method as part (a).

Use the eTool below to test the probability of each part.

Click the link at right for the full version of the eTool: *MC2 2-78 HW eTool *