27. From the following data construct Less than and More than Ogive curve. Also determine Median.
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Explanation:
Converting the frequency distribution into less than cumulative frequency distribution
Marks No. of Students
less than 10 7
less than 20 17
less than 30 40
less than 40 91
less than 50 97
less than 60 100
According to graph median = 34 marks
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