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The marks (out of 100) obtained by a ...

The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75. Find the: (i) Highest and the lowest marks obtained by the students. (ii) Range of the marks obtained. (iii) Mean marks obtain

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The table shows the marks obtained by 25 students in a class test. Find the mean of the marks obtained

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