Use a Chance Line to Show Probability

In this activity, we'll be looking at probability and using a chance line.

So, how is probability measured?

Probability is measured on a scale from 0 to 1.

If something is impossible, it has a probability of 0 that it will happen.

If something is just as likely to happen as not (even chance), it has a probability of ½ that it will happen.

If something is certain, it has a probability of 1 that it will happen.