Question

You roll a 6-sided die. What is P(prime)? Write your answer as a percentage.

Answer 1

Answer:

50%

Step-by-step explanation:

Finding the probability of a single die roll requires little effort.

First, remember that by definition, a prime is an integer with precisely two factors: 1 and the number itself (which is why 1 does not qualify: it has only one factor). The numbers from 6 on down that fit the bill are 2,3,5. Since there are six sides, your answer is:

P(prime) = 3/6  = 1/2  = 50%