Example 6. Calculate Semi-Inter-Quartile Range and the Co-efficient of Q.D. from the following data : Marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 No. of Students 11 18 25 28 30 33 22 15 22

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Example 6. Calculate Semi-Inter-Quartile Range and the Co-efficient of Q.D. from the following
data :
Marks
0-10
10-20
20-30
30-40
40-50
50-60
60-70
70-80
80-90
No. of Students
11
18
25
28
30
33
22
15
22
Transcribed Image Text:Example 6. Calculate Semi-Inter-Quartile Range and the Co-efficient of Q.D. from the following data : Marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 No. of Students 11 18 25 28 30 33 22 15 22
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