the following marks were obtained by the students in a test 81 77 92 76 64 95 87 80 72 68 35 49
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Answer:The given observation are: 81,72,90,90,86,85,92,70,71,83,89,95,85,79,62.
The minimum marks obtained are: 62
Maximum marks obtained are: 95
Thus, range = maximum marks − minimum marks =95−62=33
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