1.

The marks obtained by 40 students in class X of a certain school in a math paper, are presented in the table.The total marks in that exam was 50. Find the mean using direct method. Marks obtainedNumber of students0−10310−20420−301330−401540−505

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The marks obtained by 40 students in class X of a certain school in a math paper, are presented in the table.The total marks in that exam was 50. Find the mean using direct method.
Marks obtainedNumber of students01031020420301330401540505




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