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Compute the Least-Squares Regression Line for Predicting the Temperature from the Chirp

Question 236

Multiple Choice

Compute the least-squares regression line for predicting the temperature from the chirp rate.
-The common cricket can be used as a crude thermometer. The colder the temperature, the slower the rate of chirping. The table below shows the average chirp rate of a cricket at various temperatures.  Chirp Rate  (chirps/second)   Temperature (F) 3.871.22.3522.248.91.134.51.553.81.242.9\begin{array}{cc}\hline \begin{array}{c}\text { Chirp Rate } \\\text { (chirps/second) }\end{array} & \begin{array}{c}\text { Temperature } \\\left({ }^{\circ} \mathrm{F}\right) \end{array} \\\hline 3.8 & 71.2 \\2.3 & 52 \\2.2 & 48.9 \\1.1 & 34.5 \\1.5 & 53.8 \\1.2 & 42.9 \\\hline\end{array}


A) y11.09+28.18xy \approx 11.09 + 28.18 x
B) y13.59+28.18xy \approx 13.59 + 28.18 x
C) y28.18+11.09xy \approx 28.18 + 11.09 x
D) y28.18+13.59xy \approx 28.18 + 13.59 x

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