要想使直线回归方程式y=α+bχ与实际情况拟合得最好,就必须使()
A.总偏差平方和最小
B.正、负误差之和最小
C.误差绝对值之和最小
D.误差平方和最小
正确答案是D
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/228969.html
上一篇:鲁迅用白话创作小说开始于()
下一篇:Directions: Scanthe following passage and find the words which have roughly the same meaningsas those given below. The number in the brackets after each word definitionrefers to the number of paragraph in which the target word is. Write the wordyou c