Math Problem Statement

Diketahui variabel random X dengan pdf, f(x) = { 2e^-2x; untuk x > 0; untuk x yang lain

Tentukan rerata dan variansi dari X tersebut!

Solution

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Math Problem Analysis

Mathematical Concepts

Probability Theory
Continuous Random Variables
Expected Value
Variance

Formulas

E(X) = ∫ x f(x) dx for continuous distributions
Var(X) = E(X^2) - (E(X))^2

Theorems

Expectation and Variance of Continuous Random Variables

Suitable Grade Level

Undergraduate Probability/Statistics