Exercise #3
September 5, 2013
Exercise #3, described below, is due in class on Tue, Sep 10th.
1. Complete Problems 2.30, 2.31, 2.32, and 2.33 on p 43-44
2. Use the black_7e_excel_database to complete the following.
- Use graphical analysis to estimate the retail price of gasoline assuming a per-barrel spot price of $200.
- Use graphical analysis to estimate average annual household food expenditures in Pueblo County.
- Present appropriate graphs to support your estimates.
2 Comments
So to concatenate in excel, use the ampersand (&) as in: [=A1&” -Under “&B1] to concatenate a number in A1 with the text ” -Under ” and a number in B1.
To de-concatenate, specifically for a stem and leaf plot, use Left(cell, number) as in: [=Left(A1, 2)] which will take the first two digits of the number in A1.
These two functions help a lot in Excel.
Thanks for posting Kellen!