Probability Experiment: Spinner to Decide a Snack

posted Mar 22, 2019, 11:52 AM by Patrick Johnson

Students carried out the probability experiment below. Students made predictions on how many times it would land on a healthy snack out of 12 spins. One student predicted it was more likely to land on a healthy snack because 2 of the 3 spaces were healthy.

We collected data from the entire class and found that from all of our experiments, the spinner landed on healthy snack 108 times and on unhealthy 48 times.

To extend the activity, we used a computer simulation to simulate the experiment. We ran the simulation 1012 times and discovered that it landed on healthy 742 times and unhealthy 370 times. We discussed that it landed on healthy almost exactly two-thirds of the time!