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Two Variables Are Uncorrelated in All of the Cases Below σXYσX2σY2\left| \sigma _ { X Y } \right| \leq \sqrt { \sigma _ { X } ^ { 2 } \sigma _ { Y } ^ { 2 } }

question 59

Short Answer

Two variables are uncorrelated in all of the cases below, with the exception of a. being independent.
b. having a zero covariance.
c. σXYσX2σY2\left| \sigma _ { X Y } \right| \leq \sqrt { \sigma _ { X } ^ { 2 } \sigma _ { Y } ^ { 2 } } .
d. E(YX)=0E ( Y \mid X ) = 0 .


Definitions:

Unconscious Mind

Refers to the part of the mind that is not currently in focal awareness, containing thoughts, memories, and desires that are not readily accessible but influence behavior.

Pleasure Principle

A concept in psychoanalytic theory that describes the instinctual seeking of pleasure and avoiding of pain to satisfy biological and psychological needs.

Reality Principle

A psychoanalytic concept referring to the ego's management of the demands of the environment in a realistic manner, balancing them against the id's instincts.

Transference

The way the client perceives the therapist.

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