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UPPSC Prelims 2022CSATQ. 76 of 217
Q. 761 markMedium
UPPSC Prelims 2022·CSAT
The sum of deviations of a set of observations x₁, x₂, …, xₙ measured from 50 is –10 and the sum of deviations from 46 is 70, then the number of observation is
(a)10
(b)40
(c)20
(d)30