Answer:
2/3 or 66.67%
Explanation:
Probability of rolling a 3: 1/6
Probability of rolling a prime {2,3,5}: 3/6
Probability of rolling a 3 OR a prime:
Add the two probabilities together:
1/6 + 3/6 = 4/6 = 2/3
5.9m questions
7.7m answers