Math Problem Statement
Um par de dados é jogado continuamente,até que apareçam dois números com soma igual a 5. Calcule o número esperado de lançamentos.
Solution
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Math Problem Analysis
Mathematical Concepts
Probability
Expected Value
Geometric Distribution
Formulas
P(soma = 5) = 4/36 = 1/9
E(X) = 1/P(sucesso) = 1/(1/9) = 9
Theorems
Geometric Distribution
Suitable Grade Level
Grades 10-12
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