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\<emph\>number\</emph\> represents the value based on which the poisson distribution is calculated.
\<emph\>数値\</emph\> は、ポアソン分布を計算する値です。

\<emph\>number\</emph\> represents the value based on which the standard normal distribution is calculated.
\<emph\>数値\</emph\> は、標準正規分布を計算する値です。