For a Normal Distribution Curve with a Mean of 15

question 44

Multiple Choice

For a normal distribution curve with a mean of 15 and a standard deviation of 3, which range of the variable defines an area under the curve corresponding to a probability of approximately 68%?

• A) from 13.5 to 16.5
• B) from 12 to 18
• C) from 15 to 21
• D) from 9 to 21

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Definitions:

Group

A collective of individuals who interact with one another, share similar characteristics, and collectively experience a feeling of unity or identity.

Environment

The sum total of all external conditions and influences that affect the life, nature, behavior, and growth of an organism or organization.

Extraverted

Refers to an outgoing, socially confident personality type characterized by high levels of enthusiasm, energy, and a tendency to seek stimulation in the company of others.

Power Tactics

Strategies or methods employed by individuals or groups to exert control or influence over others.