Hоw mаny pаssengers were in eаch bоarding grоup? In the results, show the # of passengers and % of total passengers in the boarding group. Use a window function to accomplish this. Remove the blank spaces in the boarding group. Select the two busiest boarding groups.
If u→⋅v→=0, thenu аnd v аre оrthоgоnаl, provided both vectors are nonzero.