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A regression analysis between the bone density weight ( y in pounds ) and the age ( x in years after 35 years old )

A regression analysis between the bone density weight ( y in pounds ) and the age ( x in years after 35 years old ) resulted in the following least squares line: = 105 - 1.3x. This implies that if the age is increased by 2 years, the bone density weight is expected to:

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decrease by 1.3 pounds

increase by 1.3 pounds

decrease by 2.6 pounds

be equal to 105 pounds

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