The Sample Mean for a Recent Introductory Psychology Test Was

question 30

Multiple Choice

The sample mean for a recent introductory psychology test was 78 and the sample variance was 9.Approximately what proportion of the scores was above 81?

• A)0.50
• B)0.68
• C)0.16
• D)0.34

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Definitions:

Personality Traits

Enduring characteristics that describe an individual's behavior, thought patterns, and emotional reactions.

Conscientiousness

A personality trait characterized by diligence, meticulousness, and a strong sense of duty.

Self-efficacy

An individual's belief in their own ability to succeed in specific situations or accomplish a task.

Social-cognitive Perspective

A psychological approach that emphasizes how we interpret, analyze, and remember information about ourselves and the world around us.