A lottery offers one $800 prize, two $700 prizes, three $400 prizes, and four $100 prizes. One thousand tickets are sold at $5 each. Find the expectation if a person buys three tickets. Assume
that the player's ticket is replaced after each draw and that the same ticket can win more than
one prize. Round to two decimal places for currency problems.
The expectation if a person buys three tickets is? $