A Sample of 20 Observations Has a Standard Deviation of 4

question 54

Multiple Choice

A sample of 20 observations has a standard deviation of 4. The sum of the squared deviations from the sample mean is:

• A) 400
• B) 320
• C) 304
• D) 288
• E) 180

Understand the concept of the "global village" and its implications for mass media.

Grasp the significance of key inventions and technological advancements in the history of mass media.

Recognize the role of mass media in socialization, social control, and the transmission of culture.

Understand the concept of flashbulb memories and identify examples.

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Definitions:

Cohabitation

Living together in a romantic relationship without being married.

Cross-sex Friendships

Platonic friendships between individuals of different gender identities, playing a significant role in social development and understanding of diverse perspectives.

Income Levels

Categorizations of individuals or groups based on their earnings from work, investments, or other sources.

Sexual Intercourse

A physical activity involving the sexual organs of at least two people, often associated with reproduction and intimacy.