Understanding Z-Scores
A z-score tells you how many standard deviations a value is from the mean. Z = 0 is the mean, Z = 1 is one standard deviation above.
Z-Score Calculator
Calculate the z-score and corresponding probability.
Z-Score
0
Percentile (P(X ≤ x))
0%
P(X > x)
0%
P(−z ≤ Z ≤ z)
0%
Std Devs from Mean
0
Formula
z = (x − μ) / σ
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