1. EXAMPLE

2. An insurance company has collected the following data on the gender and marital status of 300 customers.
Total
Divorced
Married
Single
Gender/
Marital status
180 30
125 25
Male
120 20 60 40
Female
300 50
185 65

3. Suppose that a customer is selected at random
Suppose that a customer is selected at random. Find the following probabilities:
Probability that a customer is female and divorced. 
Probability that a customer is single given male.
Probability that a customer is male or married.