Hi,

Can anyone help me in solving this question using newton interpolation formulae.

From the following table, estimate the number of students who obtained marks between 80 and 85

Marks 40 – 50 50 – 60 60 – 70 70 – 80 80 – 90
No. of students 40 78 10 3 19


Please mail me the solution at lalitchugh@yahoo.com

Thanks in advance
Lalit Chugh