通过实地调研，应用游程检验和P-P概率图的原理，研究了昆明市某超市销售收入，得出在该超市购物的消费额是服从对数正态分布，并对其均值进行了参数估计。

With the aid of on-the-spot investigation, the principle of runs test and P-P plot are applied to the study of sales income of a supermarket in Kunming.

youdao

通过实地调研，应用游程检验和P-P概率图的原理，研究了昆明市某超市销售收入，得出在该超市购物的消费额是服从对数正态分布，并对其均值进行了参数估计。

With the aid of on-the-spot investigation, the principle of runs test and P-P plot are applied to the study of sales income of a supermarket in Kunming.

youdao