the mean Mark's in statistics of 100 students is
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The mean marks in statistics of 100 students of a class was 72 the mean of marks of boys was 75 while there number was 70 find out the mean marks of girls in class. 1950/30 = 65 mean mark for the girls.
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The mean of marks in stastics of 100 student in class was 72 The mean of marks of boys was 70 the mean marks of girls in the class is 65
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