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Bell curve from Excel data...
Hello.
Using the example from the http://tushar-mehta.com/... site, I have a mean of 1.55 and a standard deviation of .6176. Now when I plot the data as per the example on the site, the y-axis starte at 0 whereas the chart extends into negative terriroty making for a Bell Curve that look's a little strange to me. So, I guess my questions are (1) is this normal,meaning that does the chart properly show the standard deviation, (2) is there another suggested approach to use to get a normal bell curve to appear, starting from 0 on the x axis? My column A plot points start at -2.51 and edn at 2.49 in increments of .1. I did this just to get column B to show a 0. Thank you. Mark :) |
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