Answer
explanation within "step by step"
Work Step by Step
As in example 5, we set up sets A and B:
$A=\{$2003, 2004, 2005, 2006 $\}$
and enter these values in column A, from A2 to A5.
$B=\{$sail boats, motor boats, yachts$\}$,
entered in row 1, from B1 to D1.
(Labels of rows and columns, representing years and boat types)
Each cell of the table represents an element from the set $A\times B$