In a game, the player wins if he rolls a 2 on a
number cube. If the number cube is rolled 24 times,
then what is a reasonable prediction for the number
of successful rolls?

Since the die is 6 sided, there’s a 1/6 chance he’ll roll a 2. If we divided 100 by 6, it is a 17% success rate.
24 x 17% is 4.08.

He will probably roll successfully 4 times out of 24

Double check: 4/24 can be simplified to 1/6, which is the original probability.

Wow. that is a really cool question.