As this script runs, the correct response is returned to the editor, but how do I also return it back into a display dialog?
tell application "Numbers"
set theTable to the document 1's sheet 1's table 1
return (count theTable's selection range's columns) & (count theTable's selection range's rows)
display dialog (count theTable's selection range's columns) "Columns & " & (count theTable's selection range's rows) & "Rows" with icon note with title "Apple Numbers: Count or Name Table Range" buttons {"OK"} default button "OK"
end tell