couple of questions in microsoft excel

1) Find the equation that best fits this set of data. Print the spreadsheet and write the equation out by hand (include the estimated error on each coefficient). x y 1.0 36.6 2.0 39.6 3.0 31.3 4.0 13.6 5.0 -11.3 6.0 -41.0 7.0 -74.2 8.0 -108.0 9.0 -140.7 10.0 -170.0 11.0 -194.0 12.0 -210.4 13.0 -217.3 14.0 -212.4 15.0 -193.8 16.0 -159.2 17.0 -106.6 18.0 -34.0 19.0 60.8 20.0 190.0 2) Provide a full page graph of the data (data points but no line) with the best fit line (solid line) drawn on the graph The full page graph should have a title, and both axes labled. 3) Report the average and standard deviation for both the x and y column (using excel, it will show on the printed spread sheet). 4) Take a point by point first and second derivative of the data and generate a graph of each of them. Print both and determine where minimums, maximums and inflection points occur.