1.已知总体的各个体的值由小到大依次为2,3,3,7,a,b,12,13.7,18.3,20,且总体的中位数为10.5,若要使该总体的方差最小,则a、b的取值分别是多少?疑问之处:“若要使该总体的方差最小”这个条件怎么
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 13:33:05
![1.已知总体的各个体的值由小到大依次为2,3,3,7,a,b,12,13.7,18.3,20,且总体的中位数为10.5,若要使该总体的方差最小,则a、b的取值分别是多少?疑问之处:“若要使该总体的方差最小”这个条件怎么](/uploads/image/z/12953355-51-5.jpg?t=1.%E5%B7%B2%E7%9F%A5%E6%80%BB%E4%BD%93%E7%9A%84%E5%90%84%E4%B8%AA%E4%BD%93%E7%9A%84%E5%80%BC%E7%94%B1%E5%B0%8F%E5%88%B0%E5%A4%A7%E4%BE%9D%E6%AC%A1%E4%B8%BA2%2C3%2C3%2C7%2Ca%2Cb%2C12%2C13.7%2C18.3%2C20%2C%E4%B8%94%E6%80%BB%E4%BD%93%E7%9A%84%E4%B8%AD%E4%BD%8D%E6%95%B0%E4%B8%BA10.5%2C%E8%8B%A5%E8%A6%81%E4%BD%BF%E8%AF%A5%E6%80%BB%E4%BD%93%E7%9A%84%E6%96%B9%E5%B7%AE%E6%9C%80%E5%B0%8F%2C%E5%88%99a%E3%80%81b%E7%9A%84%E5%8F%96%E5%80%BC%E5%88%86%E5%88%AB%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E7%96%91%E9%97%AE%E4%B9%8B%E5%A4%84%EF%BC%9A%E2%80%9C%E8%8B%A5%E8%A6%81%E4%BD%BF%E8%AF%A5%E6%80%BB%E4%BD%93%E7%9A%84%E6%96%B9%E5%B7%AE%E6%9C%80%E5%B0%8F%E2%80%9D%E8%BF%99%E4%B8%AA%E6%9D%A1%E4%BB%B6%E6%80%8E%E4%B9%88)
xWR~%Zݭ=Nq&\L©adȈHSs!
8
B^&lYl`ݺ;}A"TnjXϿ}Rh\ϷBCkؘ˓Z{i%Z<[iEKZI "D%I"D
"E EUW.miWZkA_=$
!bo;֙ypQ_ѷf-?%5@Ӵ/ڠXd_ӭɋyaFl+/Ɖ^XjŞ_)0VAYз^f1-`E
_4g/9%h*VmcF,99\8/n/