A box of 1000 stuffed dinosaurs contains 100 that are missing their tails (Oh No!). Two dinos are drawn at random and checked to see if they have a tail. Let A be the event that the first dino drawn is missing a tail and let B be the event that the second dino is missing a tail.
(a) Find P(A)
(b) Find P(B|A)
(c) Find P(A ? B')
(d) Find P(B)
(e) Find P(A|B)
(f) Are A and B independent? Is it reasonable to treat A and B as though they are independent?
Explain.