In a workshop, there are five machines and the \( \mathrm{P} \) pro...

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In a workshop, there are five machines and the
\( \mathrm{P} \) probability of any one of them to be out of service

W on a day is \( \frac{1}{4} \). If the probability that at most two machines will be out of service on the same day is \( \left(\frac{3}{4}\right)^{3} k \), then \( k \) is equal to:
(1) \( \frac{17}{4} \)
(2) \( \frac{17}{2} \)
(3) \( \frac{17}{8} \)
(4) 4
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