Basic statistics
Photo by Simon Cunningham

We use the following basic statistical measures to gain deeper insights into how our process is performing.

Mean: The average of all values of a data set.

Median: The middle value of a data set when the values are arranged in either ascending or descending order

Mode: The mode common value of a data set.
Range: The span of numbers in the entire range of the set.

Standard Deviation – see article there.

Central Tendency – see article there.

Also related, Basic Probability

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