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Two Stopping Distance Statistics

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Table 8-35 gives the stopping distance d(feet) of an automobile traveling at speed v (miles per fou) at the instant danger is sighted. (a) Graph d against v. (b) Fit a least-squares parabola of the form d = a + bv + cv^2 to the data. (c) Estimate d when v = 45 miles per hour and 80 miles per hour. (See attachment for table and other question)

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The stopping distance of automobiles is examined using statistics.

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8.66
(a)

(b) The equation of the least square regression line considering x as the independent variable is: y = 0.6613x ...

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