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Schaum's outlines statistics and econoitrics
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Spiegel, Murray R.
Schaum's outlines: Statistics
McGraw-Hill Education, 2018
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Spiegel, Murray R.
Schaum's outline of theory and problems of statistics
McGraw-Hill, 1992
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Schaum's outline theory and problems of statistics
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Schaum's easy outlines business statistics
McGraw-Hill, 2003
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