Math and Arithmetic
Statistics
Probability

What is a standardized unit that tells how far away each measurement is from the mean?

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Answer

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Wiki User
09/24/2015

Standard deviation is a measure of the spread of data around the mean. The standardized value or z-score, tells how many standard deviations the measurement is away from the mean, and in which direction.

z score = (observation - mean) / standard deviation

Standard deviation is the unit measurement. This tells what the value a decimal is.