The prime numbers on a standard, six-sided number cube are 2, 3, and 5. The numbers greater than 2 are 3, 4, 5, and 6. Therefore, the total favorable outcomes are 4 (3 prime numbers and 1 number greater than 2 that is not prime). The total possible outcomes are 6. Therefore, the probability is 4/6 or 2/3.
Answer: B. two-thirds
You roll a standard, six-sided number cube. What is the probability of rolling a prime number or a number greater than 2?
A. five-sixth
B. two-thirds
C. one-sixth
D. one-half
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