A.
B.
C.
D.
[单选题]A.p=2,q=5B.p=-2,q=5C.p=-3q=2D.p=2,q=2
[单选题]A.p=2,q=5B.p=-2,q=5C.p=-3q=2D.p=2,q=2
[单选题]A.20B.22C.24D.28E.30
[单选题]A.16256B.-16256C.16384D.8128E.-8128
[单选题]A.20B.22C.24D.28E.30
[单选题]A.16256B.-16256C.16384D.8128E.-8128
[单选题]方差σ2/x有:()。A.B.C.D.
[单选题]方差σ2/x有:()。A.B.C.D.