NO.PZ2020010302000003
问题如下:
What two properties must a PMF satisfy?
选项:
解释:
A PMF must be non-negative and sum across the support of the random variable to 1.
PMF是什么
NO.PZ2020010302000003问题如下Whtwo properties must a PMF satisfy? A PMF must non-negative ansum across the support of the ranm variable to 1.老师好,“non-negative”是什么意思?
NO.PZ2020010302000003 问题如下 Whtwo properties must a PMF satisfy? A PMF must non-negative ansum across the support of the ranm variable to 1. two fining properties of probability0 =P(E) =1; P(E1)+P(E2)+......+P(En)=1,if E1、E2...En,is mutually anexhaustive.properties of PMF:non-negative;the sum across all value in the support of a ranm variable must one.一个是概率的性质,一个函数的性质,但好像一样,概率之和等于1的两个条件,函数不需要吗?