A box contains 15 green and 10 yellow balls. If 10 balls are randomly drawn, one-by-one, with re....

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A box contains 15 green and 10 yellow balls. If 10
\( \mathrm{P} \)
balls are randomly drawn, one-by-one, with
W
replacement, then the variance of the number of green balls drawn is
(1) \( \frac{6}{25} \)
(2) \( \frac{12}{5} \)
(3) 6
(4) 4
.


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