The Taylors have recorded their weekly grocery expenses for the past 12 weeks and determined that the
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The Taylors have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was $85.20. Later Mrs. Taylor discovered that 1 week’s expense of $74 was incorrectly recorded as $47. What is the correct mean?
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Related Book For 
A Survey of Mathematics with Applications
ISBN: 978-0134112107
10th edition
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
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