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The boiling point of water was measured at different locations of varying barometric pressures. A regression line of the data is1.9x + 155.3, where y is the boiling point in degrees Fahrenheit and is the pressure in inches of mercury.Which statement best describes the meaning of the slope in the regression line?

User Gcswoosh
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1 Answer

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the slope represents:


\frac{change\text{ }in\text{ y variable}}{change\text{ }in\text{ x variable}}

in this case


(1.9)/(1)=1.9\text{ }

this is, The boiling point increases by 1.9° F for every inch of mercury the pressure increases, therefore:

answer: A.

User Jottos
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