(c) Use technology to find the correlation between the two variables. Round your answer to three decimal places. r = (d) Use technology to find the regression line to predict distance from duration. Round your answers to the nearest integer. Distance = + (Duration)
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Based on each set of data given, calculate the regression line using your calculator or other technology tool, and determine the correlation coefficient. $$ \begin{array}{|r|r|} \hline \boldsymbol{x} & \multicolumn{1}{|c|} {\boldsymbol{y}} \\ \hline 3 & 21.9 \\ \hline 4 & 22.22 \\ \hline 5 & 22.74 \\ \hline 6 & 22.26 \\ \hline 7 & 20.78 \\ \hline 8 & 17.6 \\ \hline 9 & 16.52 \\ \hline 10 & 18.54 \\ \hline 11 & 15.76 \\ \hline 12 & 13.68 \\ \hline 13 & 14.1 \\ \hline 14 & 14.02 \\ \hline 15 & 11.94 \\ \hline 16 & 12.76 \\ \hline 17 & 11.28 \\ \hline 18 & 9.1 \\ \hline \end{array} $$
Linear Functions
Fitting Linear Models to Data
a) Use a graphing calculator to fit a regression line to the data in Exercise 63 . b) Predict airline revenue from add-on fees in 2019 and compare the value with the result found in Exercise 63 c) Find the correlation coefficient for the regression line and determine whether the line fits the data closely.
Graphs, Functions, and Models
Equations of Lines and Modeling
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