Calculate the variance Var(X) = Σ P(x_i) · (x_i - E(X))² of a discrete random variable.
Calculate the variance Var(X) = Σ P(x_i) · (x_i - E(X))² of a discrete random variable.
List of possible outcome values.
Corresponding probabilities (decimals or fractions).
Measures the spread of a random variable around its expected value.
How this calculator works
Measures the spread of a random variable around its expected value.
Common questions about this calculator
