3.For the following distribution of marks scored by a class of 40 students, calculate the Range and Q.D. Class intervals (CI) No. of Students (f) 0-10 10 20 20 40 8 16 40 60 7. 60 90 4 40

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3.For the following distribution of marks scored by a class of 40 students,
calculate the Range and Q D.
Class intervals (CI) No. of Students (f)
0- 10
5.
10 20
8.
20 40
40 60
16
7.
60 90
4
40
Transcribed Image Text:3.For the following distribution of marks scored by a class of 40 students, calculate the Range and Q D. Class intervals (CI) No. of Students (f) 0- 10 5. 10 20 8. 20 40 40 60 16 7. 60 90 4 40
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