Mathematics - Probability explained in this solution
Employees of a local company are classified according to gender and job type. The following table summarizes the number of people in each job category.
Male (M) Female (F)
Job
Administrative (AD) 110 10
Salaried staff (SS) 30 50
Hourly staff (HS) 60 40
(a) If an employee is selected at random, what is the probability that the employee is a female or a salaried staff ?
(b) What is the probability that a randomly chosen employee is a female given that she is an hourly staff?