Find the Value of a Normal Random Variable

question 40

Multiple Choice

Find the Value of a Normal Random Variable
-A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 440 seconds and a standard deviation of 60 seconds. Between what times do we expect most (approximately 95%) of the boys to run the mile

• A) between 322.4 and 557.6 sec
• B) between 341.3 and 538.736 sec
• C) between 345 and 535 sec
• D) between 0 and 538.736 sec

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Definitions:

Behavioral Therapist

A mental health professional specializing in techniques to change maladaptive behaviors and promote positive behavior change.

Phobias

Irrational and overwhelming fears of objects or situations, leading to avoidance behavior.

Social Anxiety Disorder

A chronic mental health condition where social interactions cause irrational anxiety and fear.

Generalized Anxiety Disorder

A mental health disorder characterized by persistent and excessive worry about various aspects of life, leading to significant distress or impairment.