事前 じぜん確率 かくりつ分布 ぶんぷじゃなかったです
jizenkakuritsubumpujanakattadesu

Noun
Desu Copula

The polite, past negative form of 事前確率分布

1. Was not a prior probability distribution.

Past/Perfective
Negative
Polite
Casual Register
Mathematics