The following table shows the number of new (single-unit) houses started, in thousands, in the different regions of the United States during 2012-2014.+ Take S to be the set of all housing starts represented in the table, and label the sets representing the housing starts in each row and column as shown (so, for example, N is the set of all housing starts in the Northeast during 2012-2014). 2012 (A) 2013 (B) 2014 (C) Total Use symbols to describe the given set. OANT' OBNT O AUT Ocnt OBUT Northeast (N) 50 60 50 160 Compute its cardinality. thousand Midwest (M) 90 100 110 300 South West (S) (W) 280 110 330 130 350 150 960 390 the set of housing starts in 2013 excluding housing starts in the the South Total 530 620 660 1,810

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