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EXAMPLE 13The table below gives the marke obtained by 540ve the marks obtained by 590 studenta in certainminations :40-6020-4060-80 80-100Morks less than 2050120701250100No. of StudentsFind the number of students obtaining less than 50 marks inDET of students obtaining less than 50 marks in the examination.CU. B.Com.(old) '14

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