A biased coin that has a probability of getting heads \( \mathrm{P}...

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A biased coin that has a probability of getting heads
\( \mathrm{P} \) as \( p(0p1) \) is tossed until a head appears for the

W. first time. If the probability that the number of tosses required is even, is \( \frac{2}{5} \), then \( 9 p \) is equal to
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