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2
answers
1
ISI2015MMA7
Suppose $X$ is distributed as Poisson with mean $λ.$ Then $E(1/(X + 1))$ is $\frac{e^{\lambda }1}{\lambda }$ $\frac{e^{\lambda }1}{\lambda +1}$ $\frac{1e^{\lambda }}{\lambda}$ $\frac{1e^{\lambda }}{\lambda + 1}$
asked
May 11, 2017
in
Probability

882
views
isi2015
engineeringmathematics
poissondistribution
1
answer
2
ISI 2016 PCB C5
What will be the output of the following C program? If you think it will give a runtime error, you need to mention it. In either case, your answer must include proper justifications without which no credit will be given. #include<stdio.h> main() { unsigned char i, j, a[] = {1, 2, 3, 4, 5} ... j, n); while(j != 0) a[0] += n; printf("j = %d, a[0] = %d\n", j, a[0]); }
answer selected
May 9, 2017
in
Others

177
views
programminginc
output
2
answers
3
ISI 2016 PCB C4
Commodity items have some positive or negative changes in their prices each week. Each trading company picks a portfolio of com modity items, that is, they have one or more items and they own some nonzero quantity of each one. The database table for this ... other items and there exists at least one company selling that item only (i.e., not selling any other item) in that week
answered
May 9, 2017
in
Databases

162
views
databases
nestedquerywithcorrelation
query
sql
1
answer
4
ISI Sample Paper Question
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 $A^{2}$ are all zero (C) rank(A) > rank($A^{2}$ ) (D) rank(A) > trace(A)
asked
Apr 17, 2017
in
Linear Algebra

437
views
isisamplepapers
matrices
1
answer
5
ISI Sample Paper Question
A club with $n$ members is organized into four committees so that each member belongs to exactly two committees and each pair of committees has exactly one member in common. Then $n = 4$ $n = 6$ $n = 8$ $n$ cannot be determined from the given information
asked
Apr 17, 2017
in
Numerical Ability

596
views
isisamplepapers
numericalability
permutationandcombination
5
answers
6
ISI 2004 MIII
In how many ways can three person, each throwing a single die once, make a score of $11$ $22$ $27$ $24$ $38$
commented
Apr 8, 2017
in
Combinatory

1.1k
views
permutationandcombination
isi2004
1
answer
7
Rosen (relation)
How many relations are there on the set {a, b, c, d} that contain the pair (a, a)?
answered
Mar 31, 2017
in
Set Theory & Algebra

92
views
1
answer
8
ISRO 2016 Probability [Mech]
A and B are two candidates appearing for an interview by a company. The probability that A is selected is 0.5 and the probability that both A and B are selected is at most 0.3. The probability of B getting selected is (a) 0.9 (b) 0.3 (c) 0.6 (d) 0.5
answered
Mar 8, 2017
in
Probability

383
views
engineeringmathematics
isromech
probability
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