A critical communications relay has a constant failure rate of 0.1 per day. Once it has failed, the mean time to repair is 2.5 days (the repair rate is constant). a) Compute the steady state availability b) Compute the interval availability over a 2 day mission (starting at time zero) c) What is the point availability at the end of the 2 days. d) If two communications relays must operate in series, compute the availability in part (a) to (c) e) If two communications relays must operate in parallel , compute the availability in part (a) to (c) f) If one communications relay operates in a standby mode with no failure in standby, what is the steady state availability?