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1
ISI2015-MMA-7
Suppose $X$ is distributed as Poisson with mean $λ.$ Then $E(1/(X + 1))$ is $\frac{e^{\lambda }-1}{\lambda }$ $\frac{e^{\lambda }-1}{\lambda +1}$ $\frac{1-e^{-\lambda }}{\lambda}$ $\frac{1-e^{-\lambda }}{\lambda + 1}$
asked
in
Probability
May 11, 2017
2.8k
views
isi2015
engineering-mathematics
poisson-distribution
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
in
Others
May 9, 2017
451
views
programming-in-c
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 non-zero 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
in
Databases
May 9, 2017
602
views
databases
nested-query-with-correlation
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
in
Linear Algebra
Apr 17, 2017
1.5k
views
isisamplepapers
matrix
4
answers
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
in
Quantitative Aptitude
Apr 17, 2017
3.1k
views
isisamplepapers
quantitative-aptitude
combinatory
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
in
Combinatory
Apr 8, 2017
2.9k
views
combinatory
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
in
Set Theory & Algebra
Mar 31, 2017
339
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
in
Probability
Mar 8, 2017
590
views
engineering-mathematics
isro-mech
probability
5
answers
9
GATE Overflow | Data Structures | Test 1 | Question: 16
A program takes as input a binary tree (not necessarily balanced) with $n$ nodes and computes for each node, the no. of leaf nodes in the sub-tree rooted at that node. The worst case time complexity of the program is $\Theta(n)$ $\Theta(n \log n)$ $\Theta\left(n^2 \right)$ $\Theta\left(n^2 \log n \right)$
answered
in
DS
Nov 1, 2016
1.1k
views
go-ds-1
data-structures
binary-tree
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