Daniel Jassy, CFA, is an Investopedia Academy instructor and the founder of SPYderCRusher Research. He contributes to Excel and Algorithmic Trading. David Kindness is a Certified Public Accountant ...
Calculating data fluctuations-- also called variance -- is a multi-step process that requires total accuracy. Excel 2010 provides two basic formulas for calculating fluctuations, depending on whether ...
Knowing an average is not enough to properly describe a data set. You also need a measure of how dispersed the data is. Values that are packed closely together display greater consistency than those ...
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