设 X ~B(2,p) ,Y~B(3,p),且 P(X >=1)=5/9 ,则 P(Y >=1)=
设 X ~B(2,p) ,Y~B(3,p),且 P(X >=1)=5/9 ,则 P(Y >=1)=
已知P(B|A)=1/3,P(A)=2/5,则P(A-B)等于( ) A: 5/6 B: 9/10 C: 4/15 D: 1/15
已知P(B|A)=1/3,P(A)=2/5,则P(A-B)等于( ) A: 5/6 B: 9/10 C: 4/15 D: 1/15
某配对资料经秩和检验,得T=T+= 16.5,n=9,经查表得T0.1/2(9)=8~37, T0.05/2(9)=5~40,T0.01/2(9)=1~44,则下列结果正确的是 A: P<0.01 B: P=0.01 C: P<0.05 D: P>0.10 E: P=0.10
某配对资料经秩和检验,得T=T+= 16.5,n=9,经查表得T0.1/2(9)=8~37, T0.05/2(9)=5~40,T0.01/2(9)=1~44,则下列结果正确的是 A: P<0.01 B: P=0.01 C: P<0.05 D: P>0.10 E: P=0.10
设随机变量X~B(2,p),Y~B(3,p),若P(X≥1)=5/9,则P(Y≥1)=
设随机变量X~B(2,p),Y~B(3,p),若P(X≥1)=5/9,则P(Y≥1)=
中国大学MOOC: 设随机变量X~B(2,p),Y~B(3,p),若P(X≥1)=5/9,则P(Y≥1)=
中国大学MOOC: 设随机变量X~B(2,p),Y~B(3,p),若P(X≥1)=5/9,则P(Y≥1)=
同时掷2颗均匀骰子,X表示点数大于4出现的个数,则以下结果正确的是 A: X服从二项分布 B: P(X=0)=P(X=1) C: P(X=1)=4/9 D: P(X=0)=1/9 E: P(X=2)=4/9 F: P(X>;0)=1 G: P(X<;2)=5/9 H: P(X>;1)>;0.5
同时掷2颗均匀骰子,X表示点数大于4出现的个数,则以下结果正确的是 A: X服从二项分布 B: P(X=0)=P(X=1) C: P(X=1)=4/9 D: P(X=0)=1/9 E: P(X=2)=4/9 F: P(X>;0)=1 G: P(X<;2)=5/9 H: P(X>;1)>;0.5
设A,B为两个事件,且P(A)>;0,若P(AB)=1/3,P(A)=2/3,则P(B|A)=( ) A: 1/2 B: 1/9 C: 2/9 D: 4/9
设A,B为两个事件,且P(A)>;0,若P(AB)=1/3,P(A)=2/3,则P(B|A)=( ) A: 1/2 B: 1/9 C: 2/9 D: 4/9
已知P(A)=0.8,P(A-B)=0.5,且A与B独立,则P(B)=( ) A: 2/5 B: 3/10 C: 3/8 D: 6/9
已知P(A)=0.8,P(A-B)=0.5,且A与B独立,则P(B)=( ) A: 2/5 B: 3/10 C: 3/8 D: 6/9
【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]
【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]