EXAMPLE 3.4.3

An office employs seven women and five men. One employee will be randomly

selected to receive a free lunch with the boss. What is the probability that the selected

employee will be a woman?

SOLUTION

If person is selected there are 12 possible equally likely outcomes. Seven of these 12 people are women, so

P(woman is selected) = 7 divided by 12, or roughly .583.