Assume That Z Scores Are Normally Distributed with a Mean

question 30

Multiple Choice

Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1 . If $P ( - a < z < a ) = 0.4314$ find a .

• A) -0.18
• B) 0.3328
• C) 0.57
• D) 1.49

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Definitions:

Psychostimulants

Drugs that increase activity in the central nervous system, enhancing mental alertness, attention, and energy, used in the treatment of disorders like ADHD.

ADHD

Attention Deficit Hyperactivity Disorder, a neurodevelopmental disorder characterized by problems with focus, impulsiveness, and maintaining attention, often leading to difficulties in academic and social settings.

Prefrontal Lobotomies

A now-obsolete psychiatric treatment that involved cutting connections in the brain's prefrontal cortex, once used to treat mental disorders but often resulted in severe side effects.

Client-centered

Client-centered therapy is a psychological approach that emphasizes providing a supportive emotional environment where clients can achieve a greater understanding of themselves and can resolve their own problems.