Q.3. Compute the range of the marks of 46 students of statistics and also its co-efficient from the data given below: Marks-groups: 10-20 20-30 30-40 40-50 50-60 60-70 No. of students: 5 10 14

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A: Given data is x 0 1 2 3 4 5 6 P(x) 0.11 0.15 0.20 0.25 0.19 0.09 0.01