180300d3c5444f6.png means that
A: for a binary variable model, the predicted value from the population regression is the probability that [img=44x19]180300d3cee75d7.png[/img], given [img=15x19]180300d3d69dded.png[/img].
B: dividing Y by the X's is the same as the probability of [img=11x19]180300d3de9af85.png[/img] being the inverse of the sum of the [img=15x19]180300d3e7357fb.png[/img]'s.
C: the exponential of Y is the same as the probability of Y happening.
D: you are pretty certain that Y takes on a value of 1 given the X's.
A: for a binary variable model, the predicted value from the population regression is the probability that [img=44x19]180300d3cee75d7.png[/img], given [img=15x19]180300d3d69dded.png[/img].
B: dividing Y by the X's is the same as the probability of [img=11x19]180300d3de9af85.png[/img] being the inverse of the sum of the [img=15x19]180300d3e7357fb.png[/img]'s.
C: the exponential of Y is the same as the probability of Y happening.
D: you are pretty certain that Y takes on a value of 1 given the X's.
举一反三
- 已知D(X) = 2，D(Y) = 1，X和Y的相关系数[img=109x29]180357352f85f5d.png[/img].则D(2X+Y+1) = . A: 19/3 B: 23/3 C: 28/3 D: 31/3
- 请将[img=111x25]17de91575ad9932.png[/img]写成程序表达的形式： A: y = (x - 1)(x + 3) B: y = (x - 1) * (x + 3) C: y = (x - 1) x (x + 3) D: y = (x - 1) . (x + 3)
- 设随机变量X,Y相互独立，且[img=105x25]18034eb3b21c90e.png[/img], [img=91x25]18034eb3babebfa.png[/img]，则D(2X-3Y)=______________。 A: 7/3 B: 19/3 C: 3 D: 以上都不是
- 设随机变量X,Y相互独立，且[img=105x25]17de897cfccf0b7.png[/img], [img=91x25]17de897d08bc770.png[/img]，则D(2X-3Y)=______________。 A: 7/3 B: 19/3 C: 3 D: 以上都不是
- 设随机变量X,Y相互独立，且[img=105x25]18034e9003367da.png[/img], [img=91x25]18034e900bf8a13.png[/img]，则D(2X-3Y)=______________。 A: 7/3 B: 19/3 C: 3 D: 以上都不是