We want to compare two different schemes of increasing reliability of a system using redundancy. Suppose that the system needs s identical components in series for proper operation. Further suppose that we are given m · s components. Out of the two schemes shown in Figure 1.P.7, which one will provide a higher reliability? Given that the reliability of an individual component is r, derive the expressions for the reliabilities of two configurations. For m = 3 and s = 2, compare the two expressions.
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