The sample space of an experiment is S + {1, 2, 3}. Each outcome is equally likely to occur with a probability of 1/3. What is the probability of picking number 2 or 3? Write your answer in the simplest form of a fraction
Since the probability of each outcome is 1/3 and there are two outcomes we are interested in (2 and 3), we can simply add their probabilities to find the total probability:
P(2 or 3) = P(2) + P(3) = 1/3 + 1/3 = 2/3
Therefore, the probability of picking the number 2 or 3 is 2/3.