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12 a) Prepare a C++ program for fitting a parabola to a given set of data. (5)

b) In an organization, systematic efforts were introduced to reduce the employee absenteeism(5)
and results for the first 10 months are shown below. Fit a straight

(5)

line to the data and from this equation, estimate the average weekly reduction in
absenteeism.

13 a) Interpolate the value of f at x = 0.25 using Newton’s forward interpolation
formula using the following data.

x 0.1 0.2 | 03 0.4 0.5

ர்‌ 0.11246 | 0.22270 | 0.32863 0428389 .52050

b) What numerical methods are available for the solution of partial differential
equations?
14 a) Write a complete program to fit a straight line using 11 data values.

b) Explain the terms: correlation and regression.
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