Distributions Calculator
Compute binomial probabilities, standardize with z-scores, and use the empirical rule and normal tables.
1 Normal probability calculator
For X ~ Normal(μ, σ): enter a cutoff (or two) and get the area under the curve.
Results
Enter values and press Compute.
2 Binomial calculator
P(X = k) for X ~ Binomial(n, p), plus the mean and SD.
Results
Enter n, k, p and press Compute.