Visualize a normal distribution, calculate a z-score from a mean, standard deviation, and score, and find the shaded proportion for left-tailed, right-tailed, or two-tailed regions.
Contributed by Psychology Department
Adjust the mean, standard deviation, and score to see how a value falls within a normal distribution. This tool calculates the z-score and the proportion of the distribution above, below, or outside that value, and shows it on an interactive bell curve.