The officer's of the science club are planning to sell 125 tickets to be raffled during the school's foundation day . One ticket will win PHP 2,000 and the other tickets win nothing. If you buy one ticket, what will be your expected gain?

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$E(X)=2000*\frac{1}{125}+0*(1-\frac{1}{125})=16.$ $E (X) = 2000 * \frac{1}{125} + 0 * (1 - \frac{1}{125}) = 16.$

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