A number cube, numbered 1 through 6, is rolled once. What is the probability of rolling an even number that is not prime?
1/6
1/3
1/2
2/3
1/2 Please tell me if this is correct
1/3
nnnnnnnnnnnnnnnno
To find the probability of rolling an even number that is not prime, we first need to determine the total number of outcomes and the number of favorable outcomes.
The number cube has 6 sides, numbered from 1 to 6. Since we are looking for even numbers, the possible outcomes are 2, 4, and 6. Out of these, we need to exclude the prime numbers, which are 2 only.
Therefore, the favorable outcomes are 4 and 6.
The total number of outcomes is 6 (since there are 6 numbers on the cube).
To get the probability, we divide the number of favorable outcomes by the total number of outcomes:
Probability = favorable outcomes / total outcomes = 2 / 6 = 1/3.
So, the probability of rolling an even number that is not prime is 1/3.
Therefore, the correct answer is 1/3.