Standard Deviation Question
One for the statistics whizes out there.
I keep good records. I'm OK enough with math to have created an Excel spreadsheet to track my results and calculate my standard deviation, hourly rate. How do I interpet this data?? Specifically what I have is hourly rate and 1, 2 and 3 standard deviations, also the variance whatever that is. I have enough data points for my data to be accurate. Help! Please
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