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For an initial screening of an admission test, a
\( \mathrm{P} \) candidate is given fifty problems to solve. If a

W probability that the candidate can solve any problem is \( \frac{4}{5} \), then the probability that he is unable to solve less than two problem is
(1) \( \frac{201}{5}\left(\frac{1}{5}\right)^{49} \)
(2) \( \frac{164}{25}\left(\frac{1}{5}\right)^{48} \)
(3) \( \frac{316}{25}\left(\frac{4}{5}\right)^{48} \)
(4) \( \frac{54}{5}\left(\frac{4}{5}\right)^{49} \)
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