来自孙玉坤的问题
设X~N(2,3)要使P(X≤c)=1/2,则c=?A.1B.2C.3D.4
设X~N(2,3)要使P(X≤c)=1/2,则c=?A.1B.2C.3D.4
1回答
2020-06-14 00:36
设X~N(2,3)要使P(X≤c)=1/2,则c=?A.1B.2C.3D.4
设X~N(2,3)要使P(X≤c)=1/2,则c=?A.1B.2C.3D.4
B