Chapter Review
Sign In
Use the Probability Formula.
6/25
When calculating the experimental probability, we are comparing the number of times the event occurs to the number of times the experiment is done.
P=Times the Event Occurs/Times the Experiment Is Done
This is very similar to the Probability Formula.
| Number | Times Rolled |
|---|---|
| 1 | 7 |
| 2 | 9 |
| 3 | 10 |
| 4 | 12 |
| 5 | 6 |
| 6 | 6 |
| Sum | 50 |
We can see that our experiment was done 50 times and we rolled four 12 times. Now we have enough information to calculate P(four).
Substitute values
a/b=.a /2./.b /2.
The experimental probability that the next roll will be four is 625.