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Give two definitions of Pearson r .
Middle Class
A social group between the upper and working classes, including professionals and business people, characterized by moderate income and standard of living.
Osteoporosis
A medical condition characterized by the weakening of bones, making them fragile and more likely to break.
Marathon
A long-distance running race with an official distance of 42.195 kilometers (approximately 26.219 miles), usually run as a road race.
Sedentary
A lifestyle characterized by a lot of sitting and lying down with very little to no exercise, leading to various health risks.
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