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C5801 Pages: 2

x + 79 -32 = -22 2x
-y+6z=22
Using Lagrange’s formula find the value of y at x = 6 from the following data. (10)

By the method of least squares find the straight line that best fits the following (10) data

யக कि किक

Fit a second degree polynomial of the form y~ax’+bx~+c by taking x as the
independent variable.

X | 0 | | 1 | 2 3 4
ட்ட

The following table gives indices of industrial production verses registered (10)
unemployed people. Calculate the value of the co-efficient of correlation.

(10)

Year 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015
‏سے‎ 100 | 102 | 104 | 107 | 105 | 112 | 103 | 99
Production

Number of
Unemployed

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