Find the failure rate function of the memory chips discussed in Example 2.28. Plot In(r(t)) versus A device comes from two sources. Devices from source 1 have mean m and exponentially distributed lifetimes. Devices from source 2 have mean m and Pareto-distributed lifetimes with Assume a fraction p is from source 1 and a fraction from source 2. (a) Find the reliability of an arbitrarily selected device. (b) Find the failure rate function.