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In each of Exercises 6.4–6.11, assume that the variable under consideration has a density curve. Note that the answers required here may be only approximately correct.
6.4 The percentage of all possible observations of the variable that lie between 7 and 12 equals the area under its density curve between __________ and __________, expressed as a percentage.
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Introductory Statistics, Books a la Carte Plus NEW MyLab Statistics with Pearson eText -- Access Card Package (10th Edition)
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