来自牛景汉的问题
设随机变量&的分布函数为,求(1)常数A,(2)&落在(-0.5,0.1)内的概率F(X)=0(X
设随机变量&的分布函数为,求(1)常数A,(2)&落在(-0.5,0.1)内的概率
F(X)=0(X
1回答
2020-12-21 15:23
设随机变量&的分布函数为,求(1)常数A,(2)&落在(-0.5,0.1)内的概率F(X)=0(X
设随机变量&的分布函数为,求(1)常数A,(2)&落在(-0.5,0.1)内的概率
F(X)=0(X
F(X)是连续函数所以F(1/4)-=F(1/4)+
既A*(1/16)=1
∴A=16
P(-0.5