Math Problem Statement
Uma caixa contém 6 bolas brancas e 2 bolas pretas. Retiramos bolas uma por uma, sem reposição, até aparecer uma bola branca. Seja x o número de bolas retiradas, calcule o desvio padrão de x
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Geometric Distribution
Expected Value
Variance
Standard Deviation
Formulas
Probability mass function of geometric distribution
Expected value of geometric distribution
Variance of geometric distribution
Standard deviation formula
Theorems
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Suitable Grade Level
College
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