The sample arithmetic mean is:
X = (5 − 2 + 1) / 3 = 1.33%
The sample standard deviation is:
微信号:gaoduntiku
合作账户登录:
账户名:
密码:
关注官方微信
微信号:gaoduneclass
高顿网校
售前咨询(9:00-21:00)
400-168-8811
在线客服点击咨询
售后咨询(9:00-21:00)
021-31068088
fankui@gaodun.com
微信扫一扫实时资讯全掌握
Copyright © 2006- 高顿网校, All Rights Reserved.