母ぼ分ぶん散さん

noun

population variance

In statistics, the variance of a whole population, as opposed to a sample. Used in mathematical and scientific contexts.

• 母ぼ分ぶん散さんが既き知ちの場ば合あい、検けん定ていにはz検けん定ていを用もちいる。

  When the population variance is known, a z-test is used for hypothesis testing.

• このデータから母ぼ分ぶん散さんを推すい定ていするのは難むずかしい。

  It is difficult to estimate the population variance from this data.