Mathematics for IGCSE & O level - Probability (Section 5 - No. 47)
What is the probability of rolling an even number or a 1 on a standard six-sided die?
1/6
1/2
2/3
5/6
Explication
The even numbers are 2, 4, 6 and 1 gives us 4 different options: 1, 2, 4, 6, which are 4 out of the 6 total possibilities.