At the same time as new hires were taking place, many retailers were cutting back. Out of

Question:

At the same time as new hires were taking place, many retailers were cutting back. Out of 1,000 Kwik Save stores in Britain, 107 were to be closed. Out of 424 Somerfield stores, 424 were to be closed. Given that a store is closing, what is the probability that it is a Kwik Save? What is the probability that a randomly chosen store is either closing or Kwik Save? Find the probability that a randomly selected store is not closing given that it is a Somerfield.