where myDoubleArray contains 2.0, 4.0, 6.0, 8.0, 10.0, 12.0
then sigma is 14.0.
So I would conclude that the variance calculated by Commons Math is a sample variance not a population variance.

How would I calculate a sample variance using Commons Math?

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…

We are taking giant steps in technological advances in the field of wireless telephony. At just 10 years since the advent of smartphones, it is crucial to examine the benefits and disadvantages that have been report to us.

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I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below.
https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt
https://filedb.experts-exchange.com/incoming/201…