假定的

Your assumption is wrong.

你的假定是错的。

A scientist never presupposes the truth of an unproved fact.

科学家从不预先假定未经证实的事实。

(a) As has been mentioned, some postulated that phlogiston has negative weight (levity).

(a) 正如所提到的那样，某些燃素会减轻（轻率）的假定。

In the fitting methods of both the ordinary nonparametric regression models and the varying coefficient regression models, the error term of the models is usually assumed to be homoscedastic.

以上这些回归模型的拟合方法中，通常假定模型的误差是等方差的。