Question

Stephen rolls a fair dice 78 times.
How many times would Stephen expect to roll an odd number?

Answer 1

Explanation:

1 3 5 are all odd numbers.

There are 6 numbers all together on a die. 1 2 3 4 5 6

That means that 3/6 times, he should roll an odd number

3/6 * 78 = 39

He should get 39 rolls which are an odd number.