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The mean price of a pound of ground beef in 75 cities in the Midwest is $2.11 and the standard deviation is $0.56. Suppose the histogram of the data shows that the distribution is unimodal and symmetrical. A local grocer is selling a pound of ground beef for $3.50. What is this price in standard units? Assuming the Empirical Rule applies, would this price be unusual or not? Round to the nearest hundredth.
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