Math Problem Statement
ある試行の2つの事象A,Bについて、PA(B)=P(B)が成り立つとき事象Aは事象Bと独立であるという。このとき、PB(A)も成り立つことをしめせ。
Solution
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Math Problem Analysis
Mathematical Concepts
Probability Theory
Conditional Probability
Independence of Events
Formulas
Conditional Probability Formula: P(A|B) = P(A ∩ B) / P(B)
Theorems
Probability of Intersection for Independent Events: P(A ∩ B) = P(A) * P(B)
Suitable Grade Level
Advanced Mathematics
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