Examlex
Which of the following is an analytical tool used in Six Sigma quality improvement programs?
Variance
A measure of the dispersion of a set of data points around their mean value, calculated as the average of the squared differences from the mean.
Population
The entire group of individuals or instances about whom the research is concerned or from which the data is collected.
Mean
The average of a set of numbers, calculated by dividing the sum of all values by the quantity of values.
Bell Shaped Distribution
Also known as a normal distribution, it is a probability distribution that has a symmetrical bell-shaped graph, indicating that most of the data points are concentrated around the mean.
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