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is the measure of how much the values in a data set vary, or deviate, from the mean; it tells us how spread out the data is from the mean.

Respuesta :

Answer:

Standard deviation

Step-by-step explanation:

The standard deviation provides a measure of the overall variation in a data set. The standard deviation is always positive or zero. The standard deviation is small when the data are all concentrated close to the mean, exhibiting little variation or spread.