If X and Y Are Two Random Variables with σ_x

question 101

True/False

If X and Y are two random variables with σ_x = 3.8,σ_y = 4.2,and Cov(X,Y)= -0.25,then Var(X + Y)= 31.58.

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Definitions:

Maslow's Hierarchy

Maslow's Hierarchy is a psychological theory that ranks human needs in a pyramid, from basic physiological needs to self-actualization, emphasizing the importance of fulfilling foundational needs first.

Love/Belonging

A psychological need involving emotional relationships with others, feeling part of a group, and experiencing love and friendship, which is crucial for human wellbeing.

Motivation

The process that initiates, guides, and maintains goal-oriented behaviors, involving biological, emotional, social, and cognitive forces.

Internal Forces

Inside influences for change.