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Find the median of the follwing dataMarks (28—30,30—40,40—50,50—60,60—70,70—80,80—90)No of students (5,15,25,20,7,8,10) |
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Answer» Answer: upto 30 : 5 upto 40 : 20 upto 50 : 45 upto 60 : 65 upto 70 : 72 upto 80 : 80 upto 90 : 90
90/2=45 45 is more than 40 & less than 50 so median is 50
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