Which of the following does not describe some of the functions of the federal reserve bank? a. regulates the money supply and intervenes in foreign exchange markets. b. acts as the government's fiscal agent, supervises banks and acts as a lender of last resort. c. supplies the economy with fiduciary currency, provides a system for check clearing and holds depository institutions' reserves. d. acts as a medium of exchange, a unit of accounting, a store of value and a standard of deferred payment.

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1