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ধরি, x একটি চলক এবং

\bar{x}

\sum (x - \bar{x}) > 0

\sum (x - \bar{x}) = 0

\sum (x - \bar{x}) \neq 0

\sum |x - \bar{x}| = 0

\sum (x - \bar{x}) < 0

ANS : 2

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