中等math-u09-d01
A fair six-sided die is rolled once. The probability of getting a prime number is:
A. 1/2✓ 答案
B. 1/3
C. 2/3
D. 1/6
解說
The primes on a die are 2, 3 and 5, so there are 3 favourable outcomes out of 6, giving 1/2.
The primes on a die are 2, 3 and 5, so there are 3 favourable outcomes out of 6, giving 1/2.