Math Problem Statement
(2) 如果每3件相同品质的相同部件可以合成1件上一品质的部件,期望打多少次副本可以凑齐一套传说装备?
Solution
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Math Problem Analysis
Mathematical Concepts
Probability
Expected Value
Conditional Probability
Formulas
Expected value formula E(X) = Σ x * P(X = x)
Theorems
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Suitable Grade Level
Advanced Mathematics
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