:9,-4,7,4,5,-4,3,4,1,-4,( ),( )。A.0,4B.-1,4C.-1,-4D.1.4
:9,-4,7,4,5,-4,3,4,1,-4,( ),( )。
A.0,4
B.-1,4
C.-1,-4
D.1.4
相关考题:
设X~N(0, 4),则D(2X)= ()A.2B.4C.8D.16
:9,-4,7,4,5,-4,3,4,1,-4,( ),( )。
A.0,4
B.-1,4
C.-1,-4
D.1.4