Which of the following value must always be positive in the principle of least s

Question

Which of the following value must always be positive in the principle of least squares?

Options:

A . (N-(∑V/n))²

B . (N*(∑V/n))²

C . (N+(∑V/n))²

D . (N-(∑V/n))⁰

Answer: Option A
Answer: (a).(N-(∑V/n))²

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