How to do it?

1. (16 points) We consider the electrical circuit set up as in the gure below, with 5 elements. We denote by Ez- the event that the ith element does not work (1 g \"(I g 5), and we assume that the events (E81935 are independent. We also know that ]P'(Ez) : % for 3' : 1, 24,5, and lP'(E3) : %. Compute the probability of the event E that the circuit does not work. 1 4 o o 000 MO 010