<u>Answer:</u>
The probability of rolling an even number on a standard six-sided number cube is 
<u>Solution:
</u>
The total number of possibilities on rolling the cube is = 6 as this is a six sided cube.
So the number set here is {1, 2, 3, 4, 5, 6}
In this set the even number are {2, 4, 6} = 3 numbers in total
The formula for finding probability is

So, the probability of rolling even numbers is 
So, the probability is 