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The average cost of a smartphone in North America is $529 with a standard deviation of $28. Consider a random sample of 375 smartphones.
The average cost of a smartphone in North America is $529 with a standard deviation of $28. Consider a random sample of 375 smartphones. According to Chebychev's Theorem, at least how many smartphones in the sample have a cost between $445 and $613? 75% 333 97%
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
4th Edition
471021407, 9780471021407
