Question

A standard number cube is rolled 216 times.
Predict how many times a 3 or a 5 will be the result.

Answer 1

you expect a 3: 216/6 times, and a 5:216/6 times. We add these probabilities together to get the amount of times we get a 3 or 5. 216/6+216/6=432/6=72 times