A class has 50 women and 82 men. If a student is picked at random, what's the probability of picking a woman?
There is a class of 50 women and 82 men, so 132 students all told. If we pick one person at random, what is the probability that person will be a woman?
Probability is a ratio, with the numerator being the number of ways we can satisfy a condition (or set of conditions) and the denominator being the number of ways we can get results.
In this case, there are 50 picks that will satisfy the condition of the pick being a woman and 132 total picks, so we have:
which can be reduced down: