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Jennifer's Distance D from a Motion Detector Is

question 32

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Jennifer's distance D from a motion detector is given by the data below. Find a cubic regression equation (with coefficients expressed to the nearest thousandth), and graph it together with a scatter plot of the data.
t(sec)0.00.51.01.52.02.53.03.54.04.55.0D(m)2.21.10.71.01.72.53.34.04.43.82.8\begin{array}{|l|l|l|l|l|l|l|l|l|l|l|l|}\hline t(\mathrm{sec}) & 0.0 & 0.5 & 1.0 & 1.5 & 2.0 & 2.5 & 3.0 & 3.5 & 4.0 & 4.5 & 5.0 \\\hline D(m) & 2.2 & 1.1 & 0.7 & 1.0 & 1.7 & 2.5 & 3.3 & 4.0 & 4.4 & 3.8 & 2.8 \\\hline\end{array}


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