Mathematics, 04.02.2022 09:50 NathanaelLopez

a) Following are the marks obtained by 20 students of a class in a monthly test of Maths. Present the marks in frequency table and find the mean marks. 60, 50, 40, 80, 50, 70, 50, 70, 80, 70 70, 40. 60, 70, 90. 50, 70, 40, 60. 80

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