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4.7 (標準) ポアソン分布に従う確率変数の和 (積率母関数)

Last updated at Posted at 2022-04-25

方針

「確率変数の和が従う分布」を求める際は,4.5で見た通り畳み込みか積率母関数から求める.和がよっぽど変な分布にならない限りは積率母関数からいく方が計算が簡単になる場合が多い.

答案

4.-7.jpg

参考文献

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