THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING

question 251

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
Suppose X and Y are two random variables with E(X) = 1.50,E(Y) = 0.55,E(XY) = 0.80,Var(X) = 0.25,and Var(Y) = 0.2475.
-What is the value of Var(2X - 3Y) ?

• A)-0.2425
• B)3.2275
• C)3.0775
• D)3.5275

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Definitions:

Currently Interested

The present focus or engagement of an individual or group in a specific topic, activity, or area of inquiry.

Descriptive Norms

Social norms that describe what behaviors are typically performed in a specific context, acting as guidelines for appropriate behavior.

Injunctive Norms

Socially accepted rules or behaviors that are endorsed and expected by a group, influencing members' actions.

Centralized Communication

A form of communication structure in organizations where all decisions and processes flow through a central point of command.