The figure shows a normal N(400,23) distribution.Find the approximate shaded area. 
Definitions:
Personality Change
Alterations in an individual's behavioral patterns, thoughts, or feelings that can occur over time.
Split-Brain Patient
A patient who has undergone surgery to sever the corpus callosum, effectively separating the two hemispheres of the brain, to treat severe epilepsy. This condition allows the study of the function of each hemisphere independently.
Right Hemisphere
Refers to the half of the brain responsible for spatial abilities, facial recognition, and processing music.
Left Hemisphere
The left hemisphere of the brain is responsible for controlling the right side of the body and is typically associated with logical reasoning, analytical thinking, and language processing.
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