Examlex
In the "Big Bucks" lottery game, a person is to pick 5 digits from 0 to 9 in correct order. If a number can be repeated, how many ways are there to play the game?
Arbitrage
The practice of taking advantage of price differences in different markets for the same asset, thus earning a profit without any risk.
Triangle Arbitrage
Triangle arbitrage is a risk-free trading strategy that takes advantage of price differences among three currencies in the foreign exchange market.
Exchange Rate
The value at which one form of currency can be swapped for another, impacting overseas trade and investment activities.
Cross-Rate
The exchange rate between two currencies, calculated based on their common exchange rates with a third currency.
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