jiashen/stat10/stat_XL10_hw2.pdf · · 2011-06-22148 CHAPTER 6 The Standard Deviation as a Ruler...
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jiashen/stat10/stat_XL10_hw2.pdf · · 2011-06-22148 CHAPTER 6 The Standard Deviation as a Ruler and the Normal Model b) Between what two values are the middle 50% of the salaries