If X and Y Are ____________________,The Variance of Their Sum

question 94

Short Answer

If X and Y are ____________________,the variance of their sum is equal to the sum of their variances.

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Definitions:

World Price

The global market price of a product or service, determined by worldwide demand and supply.

Import

The process of bringing goods or services into one country from another for the purpose of sale or use, often subject to trade policies and tariffs.

Export

Goods or services produced in one country and sold to buyers in another country.

Trade Barriers

Measures implemented by governments to restrict international trade and protect domestic industries from foreign competition.