The Sample Variance S ² Is an Unbiased Estimator of the Population

question 22

Multiple Choice

The sample variance s ² is an unbiased estimator of the population variance s ² when the denominator of s ² is

• A)n + 1
• B)n
• C)n - 1

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Definitions:

Frustration Aggression Hypothesis

A psychological theory suggesting that aggression is often a result of frustration, which occurs when an individual's effort to achieve a goal is blocked.

Aggression

A range of behaviors that can result in both physical and psychological harm to oneself, others, or objects in the environment.

Catharsis

The act of liberating oneself from intense or suppressed feelings, thus achieving emotional relief.

Electric Shock

A sudden discharge of electricity through a part of the body, often used in psychological experiments to study learning or as a form of aversion therapy.