Variance is a statistical calculation that numerically describes the amount of variation in a data set. If values in a data set wildly fluctuate, variance would be high and predictions based on the ...
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Multi-Vari Chart: Visualizing Variation in Your Processes
A multi-vari chart is a visual means of seeing multiple variations across a single data set. It is not a statistical ...
The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality will typically be defined by two quantities: deviations from stated ...
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