A、各总体率不同或不全相同
B、各总体率均不相同
C、各样本率均不同
D、各样本率不同或不全相同
更多“ 四个样本率作比较，<img src="https://nimg.ppkao.com/2016-01/xiaoting/201601141607427053.jpg?sign=d0dcfe02426c34d1323afef796db62bf&t=62d49640" />，可认为（）”相关的问题
A、A.<img src="https://img.ppkao.com/2017-08/qiaocuicui/2017080415373041334.png" />
B.<img src="https://img.ppkao.com/2017-08/qiaocuicui/2017080415375030351.png" />
C.<img src="https://img.ppkao.com/2017-08/qiaocuicui/2017080415380191528.png" />
D.<img src="https://img.ppkao.com/2017-08/qiaocuicui/2017080415395079693.png" />
A、A.<img src="https://img.ppkao.com/2017-09/jiangyouai/2017090715171771229.jpg" />
B.<img src="https://img.ppkao.com/2017-09/jiangyouai/2017090715172180639.jpg" />
C.<img src="https://img.ppkao.com/2017-09/jiangyouai/2017090715172613097.jpg" />
D.<img src="https://img.ppkao.com/2017-09/jiangyouai/2017090715172942515.jpg" />
A、A.<img src="https://img.ppkao.com/2018-10/liuqianlan/2018101114173779402.jpg" />
B.<img src="https://img.ppkao.com/2018-10/liuqianlan/2018101114180827527.jpg" />
C.<img src="https://img.ppkao.com/2018-10/liuqianlan/2018101114183136589.jpg" />
D.<img src="https://img.ppkao.com/2018-10/liuqianlan/2018101114185560265.jpg" />
A、设总体<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516264647619.jpg" />是来自X的样本，求m，p的矩估计量（对于具体样本值，若求得的<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516271083671.jpg" />不是整数，则取与<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516274483684.jpg" />最接近的整数作为m的估计值）。
A、（1）设总体<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516401032807.jpg" />参数σ2已知<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516404264804.jpg" />是来自X一个样本值。求μ的最大似然估计值。
（2）设总体<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516410433618.jpg" />参数μ已知<img src="https://img.ppkao.com/2019-04/wuacheng/2019041516412861381.jpg" />为一相应的样本值。求σ2的最大似然估计值。
A、A.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016533931075.jpg" />
B.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016534650114.jpg" />
C.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016535238292.jpg" />
A、A.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016433828052.jpg" />
B.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016434380962.jpg" />
C.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016434973833.jpg" />
D.<img src="https://img.ppkao.com/2017-07/jiangyouai/2017073016435728137.jpg" />
客服
TOP
查看正确答案
