1. With the assist of Erlang B chart below, DESIGN a telecommunication cellular system that could connect quarter of the total residents for certain area. Please consider number of channel, cells, amount of average call per hour and minutes of call. Number of channels (C) 10 20 40 50 70 100 0.01 4.46 12.0 29.0 42.0 56.1 84.1 Probability of blocking 0.005 0.002 3.96 3.43 11.1 10.1 27.3 25.7 40.0 37.5 53.7 51.0 80.9 77.4 0.001 3.09 9.41 24.5 35.4 49.2 75.2 (10 Marks)