6. Using an appropriate formula for interpolation, estimate the mumber of students who obtained less than 45 marks from the following data : Marks 30 40 40-50 50-60 60-70 70-80 No. of students 31 42 51 35 31

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6. Using an appropriate formula for interpolation, estimate the mumber of students who
obtained less than 45 marks from the following data :
Marks
30 40
40-50
50-60
60-70
70-80
No. of students
31
51
35
31
42
Transcribed Image Text:6. Using an appropriate formula for interpolation, estimate the mumber of students who obtained less than 45 marks from the following data : Marks 30 40 40-50 50-60 60-70 70-80 No. of students 31 51 35 31 42
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