The College Copy Shop is in process of purchasing a high-tech copier. In their search, they have gathered the following information about two possible copiers A and B. 
(a) Compute expected rate of return for each copier.
(b) Compute variance and standard deviation of rate of return for each copier.
(c) Which copier should they purchase?
Definitions:
Consumer Protection Agency
Government or independent organizations tasked with protecting the rights of consumers through the enforcement of laws and regulations that prevent fraud, unfair practices, and misinformation.
Consumer Nationalism
The preference for buying domestic goods over foreign goods as a form of patriotism, often influenced by the belief that purchasing home-grown products supports the national economy.
Currency Fluctuation
Variations in the value of one currency compared to another, affecting international trade and investments.
International Organization
An entity operating across multiple countries, focusing on global or transnational issues, either for profit or as a non-profit.
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