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The marks obtained by 12 students in a mathematics examination are given below.48, 78, 93, 90, 66, 54, 83, 58, 60, 75, 89, 84.Find (i) the mean of the marks; (ii) the mean mark of the students if each student is given 4 grace marks. |
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Answer» The marks obtained by 12 students in a mathematics examination are given below. 48, 78, 93, 90, 66, 54, 83, 58, 60, 75, 89, 84. Find (i) the mean of the marks; (ii) the mean mark of the students if each student is given 4 grace marks.
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