SOLUTION: Three stores have 8, 12, and 15 employees of whom 4, 8, and 5, respectively, are women. A store is chosen at random and from that store an employee is chosen at random. If this e

Algebra ->  Probability-and-statistics -> SOLUTION: Three stores have 8, 12, and 15 employees of whom 4, 8, and 5, respectively, are women. A store is chosen at random and from that store an employee is chosen at random. If this e      Log On


   



Question 934149: Three stores have 8, 12, and 15 employees of whom 4, 8, and 5, respectively, are women. A
store is chosen at random and from that store an employee is chosen at random. If this
employee is a woman, what is the probability she came from the store with 12 employees?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Three stores have 8(4W), 12(8W), and 15(5W) employees: Total: 35(17W)
one chosen
P(A|B) = P(A and B)/P(B)
P(store(12)| W) = %281%2F3%29%288%2F12%29%2F%2817%2F35%29