Final answer:
To predict the number of times a 4 will be rolled on a number cube rolled 100 times, multiply the probability of rolling a 4 by 100.
Step-by-step explanation:
To predict the number of times a 4 will be rolled on a number cube rolled 100 times, we need to determine the probability of rolling a 4 and then multiply it by 100.
Since a number cube has 6 sides and only one of those sides has a 4, the probability of rolling a 4 is 1/6.
Therefore, the calculation to predict the number of times a 4 will be rolled is 1/6 * 100 = 16.6667.