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consider a two class case with classes fraudulent and none fraudulent. A data mining routine has...

consider a two class case with classes fraudulent and none fraudulent. A data mining routine has been applied to a transaction dataset and has classfied 50 records as fraudulent ( 40 records so ) and 950 as nonefraudulent ( 920 correctly so ) calculate the overall error rate_______________ and the overall accurcy ________________
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