SOC 3142 Study Guide - Midterm Guide: Standard Deviation, Sampling Distribution, Standard Error

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X is the sum of ll popul tion observed n is the number of popul tion observed. Is the sum of the squ red differences (x i - x(cid:2115) ) for. Ll i . x i is the individu l d t point. Wh t does the sum of squ res tell us? the sum of squ res me sures how f r individu l me surements re from the me n. St nd rd devi tion s is the st nd rd devi tion of s mple. X(cid:2115) is the me n n is the number of popul tion observed. Wh t does the st nd rd devi tion tell us? how tightly ll the v rious ex mples re clustered round the me n in set of d t . When the ex mples re pretty tightly bunched together nd the bell-sh ped curve is steep, the st nd rd devi tion is sm ll.