As the United States fell further and further into a recession in the years 2007-2009, the number of families who had to default on their mortgages and those who actually lost their homes grew. However, as we recover from the recession, Moody's Economy predicts that these numbers will fall.14 The table below, adapted from their report, shows their approximate estimates and predictions for the years 2005-2012.

a. What variables have been measured in this report? Are they qualitative or quantitative?
b. Draw side-by-side comparative bar charts to describe the number of defaults and lost homes, categorized by year.
c. Draw two line charts on the same set of axes to describe the same number over the period 2005-2012.
d. What conclusions can you draw using the two graphs in parts b and c? Which is more effective?

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Year Defaults (thousands Lost Homes (thousands) 2005 2006 2007 2008 2009 2010 2011 2012 750 800 1350 2600 3700 3400 2200 1000 350 400 800 1650 2000 2400 1350 600