Find the least squares regression line for the points 
Definitions:
Soft Sound
Soft sound is a type of auditory stimulus characterized by low volume and intensity, often used in various contexts to elicit calmness or not to disturb.
Pastel Painting
An art medium in the form of sticks made of powdered pigment and a binder, used for creating artworks with soft, velvety textures.
Modern Hedonic Theorists
Scholars who study pleasure and pain, focusing on how these experiences influence human behavior and decision-making.
Pfaffmann
A researcher known for his contributions to the field of psychobiology, particularly in taste and the neural mechanisms of appetite.
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