皮皮学，免费搜题
登录
搜题
【单选题】
设随机变量X的概率密度为 则使P(X＞a)=P(X＜a)成立的常数a=( )A.
B.
C.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】A sample of n = 16 individuals is selected from a population with μ = 40 and σ = 12, and a treatment is administered to the sample. After treatment, the sample mean is M = 42. How does this sample com...
A.
It is an extreme value that would be very unlikely if the treatment has no effect.
B.
It is much the same as samples that would be obtained if the treatment has no effect.
C.
The mean is noticeably larger than would be expected if the treatment has no effect but it is not quite an extreme sample.
D.
There is no way to compare this sample with those that would be obtained if the treatment had no effect.
【简答题】It is the prion of disease rather than is successful treatment that has led to the tremendous increase in the population of the world during the past 75 years.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
