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Z-Score: Definition, Formula and Calculation - Statistics How To A z-score (also called a standard score) gives you an idea of how far from the mean a data point is More technically, it’s a measure of how many standard deviations below or above the population mean a raw score is
Z-Score in Statistics | Definition, Formula, Calculation and Uses Z-Score in statistics is a measurement of how many standard deviations away a data point is from the mean of a distribution A z-score of 0 indicates that the data point's score is the same as the mean score A positive z-score indicates that the data point is above average, while a negative z-score indicates that the data point is below average
How To Understand And Calculate Z-Scores – mathsathome. com To calculate the z-score, use the formula z= (x-μ) σ, where x is the raw score, μ is the mean and σ is the standard deviation In words, subtract the mean from the raw score and then divide by the standard deviation