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Which Is Not a Biometric Device

question 62

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Which is not a biometric device?


Definitions:

Producer Surplus

The variance between the price producers are willing to take for a good or service and the price they end up receiving.

Consumer Surplus

The discrepancy between the price consumers are ready to offer for a good or service and the price they end up paying.

Marginal Benefit

The enhanced enjoyment or utility gained from the consumption of one extra unit of a good or service.

Total Revenue

The collective revenue a business accumulates from sales of products or provision of services within a set period.

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