Math Problem Statement
XとYがサッカーの試合を3回する。Xが勝つ確率、Yが勝つ確率、引き分けとなる確率は全て等しく13である。引き分けも試合数に数えるとする。Xが少なくとも1回勝つ確率を求めよ。
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Formulas
Probability of complementary events
Theorems
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Suitable Grade Level
Grades 10-12
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