Which of the Following Is the Formula for the Estimated $\frac { \sum ( X - \bar { X } ) } { N }$

question 20

Multiple Choice

Which of the following is the formula for the estimated population variance?

• A) \(\frac { \sum ( X - \bar { X } ) } { N }\)
• B) \(\frac { \sum ( X - \bar { X } ) ^ { 2 } } { N }\)
• C) \(\frac { \sum ( X - \bar { X } ) } { N - 1 }\)
• D) \(\frac { \sum ( X - \bar { X } ) ^ { 2 } } { N - 1 }\)

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Definitions:

Social Conformity

The act of adjusting one's behaviors or beliefs to align with the norms or standards of a group.

Line Judgments

The activity of assessing or making decisions about the length, width, or appearance of different lines, often used in psychological research to understand perception and conformity.

Persuasive Communication

The process aimed at changing a person's or group's attitude or behavior toward some event, idea, object, or other person(s), using written, spoken words or visual tools.

Vested Interests

The specific benefits or stakes individuals or groups have in a particular outcome, often motivating their actions or opinions.