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A lottery offers 500,000 prizes, two 100,000 prizes, and four 25,000 prizes. Fifty thousand tickets are sold at 50 each. Find the expectation if a

A lottery offers ₱500,000 prizes, two ₱100,000 prizes, and four ₱25,000 prizes. Fifty thousand tickets are sold at ₱50 each. Find the expectation if a person buys 25 tickets.

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