Freezco, Inc., sells refrigerators. The company has issued a warranty on all refrigerators that requires free replacementof any refrigerator that fails before it is three years old. We are given the following information: (1) 3% of all new refrigeratorsfail during their first year of operation; (2) 5% of all one-year-old refrigerators fail during their second year of operation; and(3) 7% of all two-year-old refrigerators fail during their third year of operation. A replacement refrigerator is not covered bythe warranty.a Use Markov chain theory to predict the fraction of all refrigerators that Freezco will have to replace.b Suppose that it costs Freezco $500 to replace a refrigerator and that Freezco sells 10,000 refrigerators per year. If thecompany reduced the warranty period to two years, how much money in replacement costs would be saved?

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Freezco, Inc., sells refrigerators. The company has issued a warranty on all refrigerators that requires free replacement
of any refrigerator that fails before it is three years old. We are given the following information: (1) 3% of all new refrigerators
fail during their first year of operation; (2) 5% of all one-year-old refrigerators fail during their second year of operation; and
(3) 7% of all two-year-old refrigerators fail during their third year of operation. A replacement refrigerator is not covered by
the warranty.
a Use Markov chain theory to predict the fraction of all refrigerators that Freezco will have to replace.
b Suppose that it costs Freezco $500 to replace a refrigerator and that Freezco sells 10,000 refrigerators per year. If the
company reduced the warranty period to two years, how much money in replacement costs would be saved?

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