In probability theory, Wald's equation, Wald's identity or Wald's lemma is an important identity that simplifies the calculation of the expected value...

(X_{1})+\operatorname {E} (N^{2})\operatorname {E} (X_{1})^{2}.\end{aligned}}} By Wald's equation, under the given hypotheses, E ⁡ ( Y ) = E ⁡ ( N ) E ⁡ ( X 1 ) {\displaystyle...

criticized Wald's work on the design of experiments and alleged ignorance of the basic ideas of the subject, as set out by Fisher and Frank Yates. Wald's work...

Wald's equation Wald, Abraham (1944). "On cumulative sums of random variables". Ann. Math. Stat. 15 (3): 283–296. doi:10.1214/aoms/1177731235. Wald,...

generalization of the expected value Population mean Predicted value Wald's equation – an equation for calculating the expected value of a random number of random...

compound Poisson process can be calculated using a result known as Wald's equation as: E ⁡ ( Y ( t ) ) = E ⁡ ( D 1 + ⋯ + D N ( t ) ) = E ⁡ ( N ( t ) )...

no individuals exist after some finite number of generations. Using Wald's equation, it can be shown that starting with one individual in generation zero...

and Abraham Wald's sequential analysis.[citation needed] The term "Bellman equation" usually refers to the dynamic programming equation (DPE) associated...

stopping theorem Martingale representation theorem Azuma's inequality Wald's equation Poisson process Poisson random measure Population process Process with...

or logistic curve is a common S-shaped curve (sigmoid curve) with the equation f ( x ) = L 1 + e − k ( x − x 0 ) {\displaystyle f(x)={\frac {L}{1+e^{-k(x-x_{0})}}}}...