1.12 In an elementary study of synchronized traffic lights. consider a simple four-light exh lit 30 Of a cycle, for j for the (a) P(S+IIS,) 0.40 l. 2, 3. whae S, is the evalt that a driv is stopped by the Bh We assume a one-light' memory system. By means of the tree diagram, determine the probabiliy that a driver: Will be delayed by an four lights. Will not be delayed by any Of the lights. Will bc delayed by at mog onc light.