Draw a histogram or trend lines (excel) for the data below. Include a summary based on descriptive statistics, whether there appears to bevariation present in the monthly number of barrels sold and monthly gross sales.

2005 Data:

Jan.=196.5 barrels sold; gross sales =40,458

Feb.193.2 barrels sold; gross sales = 35,615

March.229.7 barrels sold; gross sales =43,306

2006 Data:

Jan.=243.2 barrels sold; gross sales =53,093

Feb.239.9 barrels sold; gross sales = 48,819

March.241.3 barrels sold; gross sales =49,782

2007 Data:

Jan.=290.8 barrels sold; gross sales =62,898

Feb.254.8 barrels sold; gross sales = 53,912

March.267.5 barrels sold; gross sales =56,477