Answer
a. $0.599$
b. $0.401$
c. $0.869$
Work Step by Step
a. From 20 years to 64 years, $p=0.73-0.131=0.599$
b. Under 20 or 65 and over, $p=0.27+0.131=0.401$
c. Not 65 and over, $p=1-0.131=0.869$
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