For the following frequency distribution (assume the data represent a population), 
a.Compute the mean.
b.Compute the standard deviation.
Definitions:
Schizophrenia
A persistent and serious mental illness marked by altered cognition, perception, feelings, speech, self-identity, and actions.
Hallucination
A perception in the absence of external stimulus that has qualities of real perception, typically auditory or visual, that can be associated with mental health disorders.
Sensory Systems
Sensory systems are the parts of the nervous system that receive and interpret information from the environment through senses like sight, hearing, touch, taste, and smell.
Schizophrenia
A chronic and severe mental disorder that affects how a person thinks, feels, and behaves, often characterized by delusions, hallucinations, and cognitive issues.
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