27. 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) Range of the marks obiained.
(ii) Mean marks obtained by the group.
(3) What you will do to get good marks?
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Answer:
range is 95-39=56 and mean is
48+56+95+81+75 +85+76+39+90.85/9 = 565.09
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