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Median. arranging data in ascending order 17,17,19,19,20,21,22,23,24,25,26,29,31,35,40 number of observation s=n=15(odd number) median (n+1)/2 observation (15+1) /2 observation 8th observation =23
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17 ,17 19 ,19 20,21,22,23,,25,26,,29,31,35,40 then ,n+1 =16 {n= 15}, n+1/2 =8 so,answer is 23
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