9140 EEEN60180 Question 1 continued. (b ) Suppose that every packet in a communication network is routed through two independent routes: route A and route B (so to increase the chance of delivering packets successfully.) It is known that 10% of the transmitted packets are lost (i.e., never reach the destination node), 25% of packets routed through route A are lost whereas only 15% of packets routed through route B are lost. Knowing that a packet is received via a single route, what is the probability that it has arrived through route A? [5 marks] Total [20 marks] 10