Examlex
What is obtained by taking the square root of the variance?
Currency
A system of money in general use in a particular country or region, serving as a medium of exchange, unit of account, and store of value.
Arbitrageur
Someone who takes advantage of tiny differences in the exchange rate across markets by simultaneously purchasing a currency in one market and selling it in another market.
Foreign Exchange
Trading one currency for another or transforming one currency into a different currency.
Exchange Rate
The value of one currency for the purpose of conversion to another, indicating how much one country's currency is worth in terms of another's.
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