Brett Favre was a quarterback for the Green Bay Packers football team from 1992 through 2007. The table below displays his passing touchdowns and interceptions while he played for the Packers.

1. Viewing these data as a population, use the computation formula to calculate the sum of squares for Passing TDs.

2. Calculate the variance of the Passing TD distribution.

3. Calculate the standard deviation of the Passing TD distribution.

4. Calculate the range of the Passing TDs.

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Year Passing TDs Interceptions 1992 18 13 1993 19 24 1994 33 14 1995 38 13 1996 39 13 1997 35 16 1998 31 23 1999 22 23 2000 20 16 2001 32 15 2002 27 16 2003 32 21 2004 30 17 20 2005 29 2006 18 18 15 2007 28 Mean 27.63 17.88 Year X (Passing TDs) х 1992 18 324 1993 19 361 1994 33 1089 1995 38 1444 1996 39 1521 1997 35 1225 1998 31 961 1999 22 484 2000 20 400 2001 32 1024 2002 27 729 2003 32 1024 2004 30 900 2005 20 400 2006 18 324 2007 28 784