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4.12 (難) 二次元確率変数の変数変換7 正規分布の商としてのコーシー分布

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方針

独立に標準正規分布に従う確率変数の商がコーシー分布になることを知らないと無理.変数変換した時の変数の対応する値の範囲に気をつける.

答案

4.-13.jpg
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参考文献

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