Standard Deviation vs. Variance: What’s the Difference?
Variance: An Overview Standard deviation and variance are two basic mathematical concepts that have an important place in ...
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standard deviation
In statistics, the average amount a number varies from the average number in a series of numbers. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.
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Pooled Standard Deviation: How Do You Calculate It?
When you have the average production of three machines, it is easy to calculate the average or mean production. You just add up the three means and divide by three. But what if I want the average ...