Final answer:
The set representing the event of rolling an even number on a six-sided die is {2, 4, 6}.
Step-by-step explanation:
When you roll a fair, six-sided die, each face of the die represents an equally likely outcome. The sample space S for a six-sided die is S = {1, 2, 3, 4, 5, 6}. The event E that represents rolling an even number comprises of those outcomes in the sample space that are even. Since a six-sided die has the even numbers 2, 4, and 6 on its faces, the set representing event E is therefore {2, 4, 6}.