I am so sorry to put the second part of the question to the top picture but I really need help.

3. Let Xo and X1 be independent exponentially distributed random variables with re- spective parameters do and )1, so that, P(Xi > t) = edit, for t20, i=0,1. Let N = [0 if Xo t), for t > 0. [2 marks] (b) P(N = 0) and P(N = 1). [2 marks](c ) (U > t) for t: 0. [2 marks] (d) ) ) P P(W > th 0), for t: 0. [2 marks] (e P(W >t), for t 2 0. [2 marks] (f Show that U and W: V U are independent random variables. [3 marks]