The Variance of a Sample Was Reported to Be 144 $\sum ( x - \bar { x } ) ^ { 2 }$

question 27

Multiple Choice

The variance of a sample was reported to be 144.The report indicated that $\sum ( x - \bar { x } ) ^ { 2 }$ = 7200.What is the sample size?

• A) 49
• B) 50
• C) 51
• D) 52

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Definitions:

Panic Disorder

A mental health condition characterized by sudden and repeated episodes of intense fear accompanied by physical symptoms such as chest pain, heart palpitations, dizziness, or abdominal distress.

Neurochemical Basis

Refers to the foundation or underlying cause of behaviors and mental processes as determined by the activity of neurotransmitters and neurochemicals in the brain.

Norepinephrine

A neurotransmitter and hormone involved in the body's fight or flight response, affecting attention, heart rate, and blood pressure.

GABA

A neurotransmitter in the central nervous system that inhibits nerve transmission, leading to calming effects.