Use the table for the question(s)below.
Consider the following covariances between securities: 
-What is the variance on a portfolio that has $2000 invested in Duke Energy,$3000 invested in Microsoft,and $5000 invested in Wal-Mart stock?
Definitions:
Language Processing
A field of computer science and artificial intelligence focused on the interaction between computers and human (natural) languages, allowing computers to understand, interpret, and generate human language.
AI Systems
Artificial Intelligence Systems are computer-based systems that can perform tasks typically requiring human intelligence, including learning, problem-solving, and pattern recognition.
Recommendation Engines
AI systems that help people discover things they may like but are unlikely to discover on their own.
Retail Industry
The sector of the economy that deals with the sale of goods and services directly to consumers.
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