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A Sample of Eight Observations of Variables X and Y

question 13

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A sample of eight observations of variables x and y is shown below: x53792468y2023151127211714\begin{array} { | l | r | r | r | r | r | r | r | r | } \hline x & 5 & 3 & 7 & 9 & 2 & 4 & 6 & 8 \\\hline y & 20 & 23 & 15 & 11 & 27 & 21 & 17 & 14 \\\hline\end{array} Draw the scatter diagram and plot the least-squares line.


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