$3-27$ Based on the $\backslash ($ X $\backslash )$ and $\backslash ($ Y $\backslash )$ data below, complete the table below using Excel. Find $1)$ the coefficients a and $\backslash ($ b $\backslash )$ for the $\backslash (\backslash$mathrm$\{$Y$\}=\backslash$mathrm$\{$aX$\}+\backslash$mathrm$\{$b$\}\backslash )($best$-$fit line using the least square fit$)2)$ Find the R $-$square $($Coefficient of determination$)3)$ Plot $\backslash ($ x $\backslash )$ vs$.$ y using Excel and display the trendline equation $($Linear$)$ and R$-$square $($Coefficient of determination$)$ in the figure. Attach printed Excel documents for $\backslash (\backslash$mathrm$\{$Pb$\}3-27\backslash )$ to your HW solution and upload the Excel file on Brightspace.

Plot $\backslash ($ x $\backslash )$ vs$.$ y using Excel and display the trendline equation $($Linear$)$ and R$-$square $($Coefficient of determination$)$ in the figure.