1.

For observations x1,x2,x3,..........,xn, if ∑ni=1(xi+1)2=9n and ∑ni=1(xi−1)2=5n., then standard deviation of the data is

Answer»

For observations x1,x2,x3,..........,xn, if ni=1(xi+1)2=9n and ni=1(xi1)2=5n., then standard deviation of the data is




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