18

Q18. Find the median of the following data 
      
  x    6      7     5      2     10      9     3
   fi    9     12    8     13     11     14     7

Dear Student,

Given Data x  fi           cumulative frequency cfi69971221582921342101153914673774Total  74Here, n=74if  n is even, then the median will be the average of the n2th and  n2+1th observation .So, Median is=n2th +  n2+12                 =37+382                 =752  Median=37.5
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