You can use this  excel file as you see fit. All answers, including the graphs, must be included in the submitted spreadsheet

Graphs should be titled and the axes should be adequately labeled.
 All Excel formulas may be used – for example, you can use AVERAGE() to compute the mean (you do not need to do any calculation “manually”, using only arithmetic operations).
it is not necessary to answer the last question thank you for your help.

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