2 answers
1
Suppose $X$ is distributed as Poisson with mean $λ.$ Then $E(1/(X + 1))$ is$\frac{e^{\lambda }-1}{\lambda }$$\frac{e^{\lambda }-1}{\lambda +1}$$\frac{1-e^{-\lambda }}{\l...
1 answer
4
Let A be a square matrix such that $A^{3}$ = 0, but $A^{2} \neq 0$. Then which of the following statements is not necessarily true?(A) $A \neq A^{2}$(B) Eigenvalues of $A...
5 answers
6
In how many ways can three person, each throwing a single die once, make a score of $11$$22$$27$$24$$38$
1 answer
7
How many relations are there on the set {a, b, c, d}that contain the pair (a, a)?