Let's set up the model.

Fifty percent is the same as 50 out of 100. Build a model that represents a 50 percent chance of rain in Baton Rouge by moving the correct number of red or white marbles into the bag. In this model, a white marble means that it is going to rain in Baton Rouge. A red marble means that it will not rain. You want the bag to have a total of 10 marbles.

Drag the correct number of marbles into the bag to build the model, then click Check Your Answer.