Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
计算高度( mu = 170 厘米、 sigma = 8 厘米)和重量( mu = 70 公斤、 sigma = 12 公斤)的变异系数 CV = sigma/mu 。哪个集合相对变异性更大?
计算高度( mu = 170 厘米、 sigma = 8 厘米)和重量( mu = 70 公斤、 sigma = 12 公斤)的变异系数 CV = sigma/mu 。哪个集合相对变异性更大?
Natural Language
Math Input
Extended Keyboard