\begin{tabular}{|r|r|r|r|} \hline & A & & \\ \hline 1 & x1 & x2 & x3 \\ \hline 2 & Red & Large & Matte \\ \hline 3 & Yellow & Large & Matte \\ \hline 4 & Green & Large & Glossy \\ \hline 5 & Red & Medium & Matte \\ \hline 6 & Red & Large & Glossy \\ \hline \end{tabular} The accompanying data file contains five observations with three categorical variables, x1,x2, and x3. Click here for the Excel Data File a. Compute the matching coefficient for all pairwise observations. Note: Round your answers to 2 decimal places. b-1. Which of the following observations is the most similar pair? Observations 1 and 2 Observations 1 and 3 Observations 2 and 3 Observations 2 and 4 -1. Which of the following observations is the most similar pair? Observations 1 and 2 Observations 1 and 3 Observations 2 and 3 Observations 2 and 4 b-2. Which of the following observations is the least similar pair? Observations 3 and 4 Observations 1 and 3 Observations 2 and 4 Observations 2 and 5