What is the probability of rolling an even number on a single, standard number cube?
A: 1
B: 1/3
C: 5/6
D: 1/6
To determine the probability of rolling an even number on a single, standard number cube, we need to find the number of favorable outcomes (rolling an even number) and divide it by the total number of possible outcomes.
A standard number cube has six faces numbered 1 to 6. Out of these six numbers, three of them (2, 4, and 6) are even.
Therefore, the number of favorable outcomes is 3 (rolling an even number), and the total number of possible outcomes is 6 (the six faces of the cube).
To find the probability, we divide the number of favorable outcomes by the total number of possible outcomes:
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 3 / 6
Simplifying this fraction, the answer is 1/2.
So, the correct answer is not listed among the options provided.