Find the area of the shaded region. 
Definitions:
Age
The length of time that a person or thing has existed; a particular stage in someone's life.
Amount of Hair
A characteristic referring to the density, thickness, and overall quantity of hair on an individual's body or head.
Negatively Correlated
A relationship between two variables in which one variable increases as the other decreases.
Correlation Coefficient
A statistical measure that calculates the strength and direction of a linear relationship between two variables on a scatterplot.
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