discrete expectation
averages possible values based on probability weighting. The
symbols, variables and units
X,x: random variables and values; P: probability; expectation has the same unit as X.
applicable conditions and boundaries
is absolutely integrable and guarantees finite expectation; tail probabilities cannot be ignored.
formula source code
The following is a copyable LaTeX expression.
\mathbb E[X]=\sum_x x\,P(X=x)
Reference and Extended Learning
Harvard Stat 110 · Probability ↗is organized according to model definition and assumptions. Please check actual conditions and original literature before engineering, research and clinical use.
expectationexpectations