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
Geometric Distribution
Expected Value
Variance
Standard Deviation
Formulas
Geometric distribution formula
Expected value formula
Variance formula
Standard deviation formula
Theorems
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Suitable Grade Level
Undergraduate level
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