This calculator automatically finds the mean, standard deviation, and variance for any probability distribution.
Simply fill in the cells below for up to 10 values, then click the “Calculate” button:
Note: The Probability column must add up to 1.
| Outcome | Probability | Value |
|---|---|---|
| Outcome 1 | ||
| Outcome 2 | ||
| Outcome 3 | ||
| Outcome 4 | ||
| Outcome 5 | ||
| Outcome 6 | ||
| Outcome 7 | ||
| Outcome 8 | ||
| Outcome 9 | ||
| Outcome 10 |
Mean (μ) = 1.4500
Standard Deviation (σ) = 0.9734
Variance (σ2) = 0.9475
Probabilities must add up to 1. They currently add up to 0.359