(a) If the sum of the deviations of the numbers X1, X2,X3, .....,Xn from their mean, , is zero. That is, E, (x¡ – x) = 0, show if k =i+ c, that E1(xi – k)² =E,(xi – x)² + nc? %3D1

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.