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How This Book Works
A Measure of Central Tendency 22
A Measure of Dispersion 3942
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addition answer approximation assumed mean average begins called central tendency close column Complete compute compute the mean correct correlation count decimal place determine difference divide dividing line error example follow frequency distribution give given guess half-way indicate interpretation look lower lowest marked measure of dispersion measures of central median method mid-point middle minus mode multiplied negative number of scores obtained pairs percentiles performance positive possible sizes proceed to section quartile question quotient range References relationship Remember represent result Return to section rounded scattergram score groups score sizes section 31 set of scores sizes of score spread square root standard deviation statistics step Take tell test scores tion turn understand wish wrong