计算:7.5×46.7+52.3×7.5+7.5;(12+13+16-18)×24;(2.5-2.5×0.6)÷0.4;15-(35+2.4×13)÷12;1.2+[225÷(2-2.4×23)];2x0.6=0.93.
计算:7.5×46.7+52.3×7.5+7.5;(12+13+16-18)×24;(2.5-2.5×0.6)÷0.4;15-(35+2.4×13)÷12;1.2+[225÷(2-2.4×23)];2x0.6=0.93.
定义int x, y ; x= 8 ; 以下表达式运算后y的值为8的是( )。 A: y=0.6*2 *x B: y=(int)(0.6*2*x) C: y=x++ D: y=x++*2
定义int x, y ; x= 8 ; 以下表达式运算后y的值为8的是( )。 A: y=0.6*2 *x B: y=(int)(0.6*2*x) C: y=x++ D: y=x++*2
If X is a binomial random with n = 8 and p = 0.6, what is the probability that X is greater than 2?
If X is a binomial random with n = 8 and p = 0.6, what is the probability that X is greater than 2?
设X~N(2,σ2),P{2 A: 0.7 B: 0.2 C: 0.6 D: 0.5
设X~N(2,σ2),P{2 A: 0.7 B: 0.2 C: 0.6 D: 0.5
If X is a binomial random with n = 8 and p = 0.6, what is the probability that X is less than or equal to 2?
If X is a binomial random with n = 8 and p = 0.6, what is the probability that X is less than or equal to 2?
设X与Y是同分布的随机变量,P(X=1)=0.3, P(X=2)=0.7,P(X=2,Y=2)=0.6,则P(X=1,Y=2)的值为
设X与Y是同分布的随机变量,P(X=1)=0.3, P(X=2)=0.7,P(X=2,Y=2)=0.6,则P(X=1,Y=2)的值为
设随机变量X的分布律为P(X=1)=0.4, P(X=2)=0.6, 则 D(2X+1)=( )
设随机变量X的分布律为P(X=1)=0.4, P(X=2)=0.6, 则 D(2X+1)=( )
中国大学MOOC: 设X与Y是同分布的随机变量,P(X=1)=0.3, P(X=2)=0.7,P(X=2,Y=2)=0.6,则P(X=1,Y=2)的值为
中国大学MOOC: 设X与Y是同分布的随机变量,P(X=1)=0.3, P(X=2)=0.7,P(X=2,Y=2)=0.6,则P(X=1,Y=2)的值为
设随机变量X的分布律为P{X=-2}=0.4,P{X=0}=0.3,P{X=2}=0.3,则E(X)= ( ). A: 0.4 B: -0.2 C: 0.3 D: 0.6
设随机变量X的分布律为P{X=-2}=0.4,P{X=0}=0.3,P{X=2}=0.3,则E(X)= ( ). A: 0.4 B: -0.2 C: 0.3 D: 0.6
在 EXCEL中, 单元格输入( ), 显示结果为 1.2 A: 2*0.6 B: “2*0.6” C: =”2*0.6” D: =2*0.6
在 EXCEL中, 单元格输入( ), 显示结果为 1.2 A: 2*0.6 B: “2*0.6” C: =”2*0.6” D: =2*0.6