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A box contains 15 green and 10 yellow balls. If 10 balls are randomly drawn, one-by-one, with replacement, then the variance of the number of green balls drawn is :

$\begin{array}{1 1} (1) 6 \\ (2) 4 \\ (3) \large\frac{6}{25}\\ (4) \large\frac{12}{5} \end{array} $

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