MCQ
Cov (x, y) = ________
  • A
    $\Sigma(\mathrm{x}-\bar{x})(\mathrm{y}-\bar{y})$
  • B
    $\frac{\sum(x-\bar{x})(y-\bar{y})}{n}$
  • C
    $\frac{\sum x y}{n}-\bar{x} \bar{y}$
  • b and $c$ both

Answer

Correct option: D.
b and $c$ both

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