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[CLASS 10 BOARDS 2019] For the following...

[CLASS 10 BOARDS 2019] For the following frequency distribution draw a cumulative frequency curve of `"'more than type'"` and hence obtain the median value `[["Class",0-10,10-20,20-30,30-40,40-50,50-60,60-70],["Frequency",5,15,20,23,17,11,9]]`

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