Mathematics · Statistics
Find the range and the coefficient of the range for the following grouped frequency distribution data: Marks: 20 - 30, 30 - 40, 40 - 50, 50 - 60, 60 - 70, 70 - 80, 80 - 90 Number of Students: 10, 12, 15, 20, 25, 13, 38
- 160, 0.64
- 270, 0.54
- 360, 1.54
- 470, 0.64✓
Correct answer
70, 0.64
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