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Mathematics, 19.11.2019 04:31 dayanara72
At an auto repair shop, 14 of the 56 cars received oil changes. what percent of the car is received oil changes?
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1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
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At an auto repair shop, 14 of the 56 cars received oil changes. what percent of the car is received...
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