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Simple random samples are typically used in real applications.
Token Money
Money whose face value exceeds its cost of production.
Coins
Pieces of metal issued by the government as money, typically used as lower-value currency.
Barter
An exchange system where goods or services are directly exchanged for other goods or services without using a medium of exchange, such as money.
Commodity Money
A type of money whose value comes from a commodity of which it is made, such as gold or silver.
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