Suppose X Is Normally Distributed with Mean 100 and Standard

question 86

Multiple Choice

Suppose X is normally distributed with mean 100 and standard deviation 20.Without using tables,determine the approximate value of P(80 < X < 100) .

• A) 0.997
• B) 0.95
• C) 0.68
• D) 0.50
• E) 0.34

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Definitions:

Adaptation-Level Phenomenon

The tendency of humans to quickly adapt to a new situation or environment, making it the new normal.

Biofeedback

A technique that teaches individuals to control physiological processes such as heart rate, using monitoring devices to provide information on bodily functions.

Internal Locus

Belief that one has control over their life events and outcomes, as opposed to external forces being responsible.

Emotion-Focused Coping

Strategies aimed at managing and reducing the emotional distress associated with a situation.