5. jerry lost her credit card and instead of reporting it right away, she decides to continue looking for it for a couple of days. on the second day, she makes the call and reports the card lost/stolen to the credit card company. she then logs into the account activity page of her credit card and sees a recent $500 purchase that was made by someone else. how much of this $500 charge will jerry have to pay?

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