Let Z Be a Normal Random Variable with Mean 0

question 64

Multiple Choice

Let z be a normal random variable with mean 0 and standard deviation 1. The 50^th percentile of z is ___.

• A) 0.67
• B) -1.25
• C) 0.00
• D) 1.28
• E) 0.50

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Definitions:

Anxiety Disorders

A category of mental health diagnoses that lead to excessive nervousness, fear, apprehension, and worry.

Psychiatric Disorders

Mental health conditions characterized by changes in emotion, thinking or behavior (or a combination of these) associated with distress and/or impaired functioning.

ADHD

Attention Deficit Hyperactivity Disorder, a neurodevelopmental disorder characterized by inattention, hyperactivity, and impulsivity.

Anxiety

A mental health disorder characterized by feelings of worry, anxiety, or fear that are strong enough to interfere with one's daily activities.