2) A device used in a ground radar system has age to failure that is described approximately by a Weibull distribution with mean life 83 h, shape parameter 1.5, and location parameter zero. When it fails it takes on average 3.5 h to repair: a) Calculate the reliability over a 25 h period, and the 'steady state' availability of the device. b) Calculate the reliability over 25 h, and the 'steady state' availability of a subsystem that consists of two of these devices in active parallel redundancy.

Needs Complete typed solution with 100 % accuracy.

In this exercise we show that in the general case, exact recovery of a linear compression scheme is impossible. a. Let A ∈ Rn,d be anarbitrary compression matrix where n ≤ d−1. Show that there exists u,v ∈ Rd,u= v, such that Au = Av. Hint: Show that there exists u= 0,v = 0 such that Au = Av = 0. Hint: Consider using the rank-nullity theorem.   b. Conclude that exact recovery of a linear compression scheme is impossible.

correct and complete solution please don't copy from chegg