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Recent questions tagged engineering-mathematics
8
votes
2
answers
1081
Gate-2006, CE
There are 25 calculators in a box. Two of them are defective. Suppose 5 calculators are randomly picked for inspection (i.e., each has the same chance of being selected), what is the probability that only one of the defective calculators will be included in the inspection? can we do it by both hypergeometric as well as by binomial distribution?
There are 25 calculators in a box. Two of them are defective. Suppose 5 calculators are randomly picked for inspection (i.e., each has the same chance of being selected),...
Prerna Chauhan
2.9k
views
Prerna Chauhan
asked
Jan 17, 2017
Probability
usergate2006-ce
probability
engineering-mathematics
usermod
+
–
4
votes
2
answers
1082
What is the expected length of the cycle containing vertex 1?
A random permutation π of set[n] = {1, 2, , n} can be represent by a directed graph on n vertices with directed arc (i, πi) where πi is the ith entry in the permutation. Observe that the resulting graph is just a collection of disjoint cycles. ... containing vertex 1? n(n-1)/2n (n+1)/2n ((n-1))/2 ((n+1))/2 /pls explain the question
A random permutation π of set[n] = {1, 2, …, n} can be represent by a directed graph on n vertices with directed arc (i, πi) where πi is the ith entry in the permuta...
Akriti sood
1.6k
views
Akriti sood
asked
Jan 16, 2017
Graph Theory
expectation
graph-theory
engineering-mathematics
+
–
4
votes
2
answers
1083
Testbook Test Series 2017: Calculus - Functions
The function defined for positive integers by $F\left ( 1 \right )=1 F\left ( 2 \right )=1 F\left ( 3 \right )=-1$ and by identites $F\left ( 2k \right )=F\left ( k \right ), F\left ( 2k+1 \right )=F\left ( k \right ) for\; k>=2$ ... is___ ??
The function defined for positive integers by$F\left ( 1 \right )=1 F\left ( 2 \right )=1 F\left ( 3 \right )=-1$and by identites$F\left ( 2k \right )=F\left ( k \right )...
Sheshang
978
views
Sheshang
asked
Jan 16, 2017
Calculus
testbook-test-series
engineering-mathematics
calculus
functions
+
–
2
votes
3
answers
1084
Integration
Solve the following $\int_{0}^{\infty}e^{-x^2}x^4dx$
Solve the following $\int_{0}^{\infty}e^{-x^2}x^4dx$
Prabhanjan_1
640
views
Prabhanjan_1
asked
Jan 16, 2017
Calculus
engineering-mathematics
integration
calculus
+
–
3
votes
1
answer
1085
Test by Bikram | Mock GATE | Test 1 | Question: 1
There are "m" red balls and "n" green balls in a bucket. p balls are drawn from the urn and if found that all of them are green then what is the probability that another ball drawn from those remaining will also be green? Assume p < n p-n/m+n n-p/m+n-p p-m/m+n m-p/m+n-p
There are "m" red balls and "n" green balls in a bucket. p balls are drawn from the urn and if found that all of them are green then what is the probability that another ...
Bikram
435
views
Bikram
asked
Jan 16, 2017
GATE
tbb-mockgate-1
combinatory
engineering-mathematics
probability
conditional-probability
+
–
0
votes
1
answer
1086
Perfect Matching for a graph
Find the number of perfect matching of the graph Your Answer: 105 Correct Answer: 9 Status: incorrect
Find the number of perfect matching of the graphYour Answer:105Correct Answer: 9 Status: incorrect
vishwa ratna
291
views
vishwa ratna
asked
Jan 15, 2017
Mathematical Logic
engineering-mathematics
+
–
0
votes
1
answer
1087
LINEAR ALGEBRA
IS ZERO THE ONLY EIGEN VALUE OF SINGULAR MATRICES??
IS ZERO THE ONLY EIGEN VALUE OF SINGULAR MATRICES??
sushmita
496
views
sushmita
asked
Jan 12, 2017
Mathematical Logic
engineering-mathematics
eigen-value
linear-algebra
+
–
1
votes
1
answer
1088
what is the probability that the mother could have had the very long or very short pregnancy
An expert witness in a paternity suit testifies that the length (in days) of distributed with parameters μ=270 and σ^2=100. The defendant in the suit is able to prove that he was out of the country ... very long or very short pregnancy indicated by the testimony? 0.241 0.0241 how to solve such questions??
An expert witness in a paternity suit testifies that the length (in days) of distributed with parameters μ=270 and σ^2=100. The defendant in the suit is able to prove t...
Akriti sood
721
views
Akriti sood
asked
Jan 12, 2017
Probability
probability
engineering-mathematics
+
–
0
votes
0
answers
1089
findthe probability that all the customers that arrive at the shop within the first 10 minutes, all bought product A?
Customers arrive at a shop according to a Poisson process at rate λ (/min), where they choose to buy either product A (with probability P) or product B (with probability...
Akriti sood
403
views
Akriti sood
asked
Jan 12, 2017
Probability
engineering-mathematics
probability
+
–
3
votes
5
answers
1090
Probability
2 friends Alice and Bob have found an unfair coin,It has 72% chance of coming up heads.Alice and Bob plays a game with this coin.If coin comes up head then tails,Alice wins.If it's reverse(tails,then heas),Bob wins.And if neither of those two things happens,the game restarts and continues untill there is a winner What is Bob's probability of winning?
2 friends Alice and Bob have found an unfair coin,It has 72% chance of coming up heads.Alice and Bob plays a game with this coin.If coin comes up head then tails,Alice wi...
Prajwal Bhat
1.8k
views
Prajwal Bhat
asked
Jan 12, 2017
Mathematical Logic
probability
engineering-mathematics
+
–
0
votes
4
answers
1091
GateForum Test Series: Graph Theory - Graph Coloring
The Chromatic Number of Cycle Graph with 7 vertices _____
The Chromatic Number of Cycle Graph with 7 vertices _____
Jason GATE
2.3k
views
Jason GATE
asked
Jan 9, 2017
Graph Theory
gateforum-test-series
engineering-mathematics
discrete-mathematics
graph-theory
graph-coloring
+
–
1
votes
2
answers
1092
Ace Test Series: Combinatory - Permutations And Combinations
According to my understanding, there should be men and women both in the team. So we can do: 3M and 1W or 2M and 2W or 1M and 3W. So it will be: C(5,3)*C(5,1)+C(5,2)*C(5,2)+C(5,1)*C(5,3). But the answer given is 600. How is it possible?
According to my understanding, there should be men and women both in the team. So we can do:3M and 1W or2M and 2W or1M and 3W.So it will be: C(5,3)*C(5,1)+C(5,2)*C(5,2)+C...
Purple
479
views
Purple
asked
Jan 7, 2017
Probability
engineering-mathematics
combinatory
ace-test-series
+
–
1
votes
1
answer
1093
ace-test-series subject-test
After taking |A|=0, I am getting x3+1=0 and not x3-1=0. Is it x3+1=0 or x3-1=0?
After taking |A|=0, I am getting x3+1=0 and not x3-1=0.Is it x3+1=0 or x3-1=0?
Purple
411
views
Purple
asked
Jan 7, 2017
Mathematical Logic
ace-test-series
test-series
engineering-mathematics
linear-algebra
+
–
1
votes
1
answer
1094
maths
When the curves, y = log10x and y = x–1 are drawn in x – y plane. The number of times they intersect for values x ≥ 1 is ________.
When the curves, y = log10x and y = x–1 are drawn in x – y plane. The number of times they intersect for values x ≥ 1 is ________.
thor
337
views
thor
asked
Jan 7, 2017
Mathematical Logic
discrete-mathematics
engineering-mathematics
+
–
1
votes
0
answers
1095
Probablity Knockout Round
In a knockout tournament $2^n$ equally skilled players;S1,S2,...,S2^n are participating.In each round players are divided in pair at random and winner from each pair moves in the next round.If S2 reaches the semi-final then the probability that S1 wins ? Could someone please help with hints/approach to solve this?
In a knockout tournament $2^n$ equally skilled players;S1,S2,...,S2^n are participating.In each round players are divided in pair at random and winner from each pair move...
yg92
745
views
yg92
asked
Jan 6, 2017
Probability
engineering-mathematics
probability
combinatory
testbook-test-series
+
–
1
votes
1
answer
1096
consider the set and find corresponding
LavTheRawkstar
408
views
LavTheRawkstar
asked
Jan 6, 2017
Mathematical Logic
engineering-mathematics
+
–
0
votes
0
answers
1097
How this statement is true
How this is true ? $_{r}^{\frac{n(n-1)}{2}}\textrm{C} = 2^{\frac{n(n-1))}{2}}$
How this is true ?$_{r}^{\frac{n(n-1)}{2}}\textrm{C} = 2^{\frac{n(n-1))}{2}}$
PEKKA
263
views
PEKKA
asked
Jan 2, 2017
Graph Theory
engineering-mathematics
+
–
0
votes
0
answers
1098
A graph $G$ is Eulerian path iff degree of each vertex is even with atmost one trivial component
For this proof ,proving $\Rightarrow$ If Graph $G$ is eulerian then degree of each vertex is even with atmost one trivial component. As $G$ is Eulerian ,it means it **must not** repeat Edges but can repeat ... $C,F =3$ contradictory.... help me out where i am wrong
For this proof ,proving$\Rightarrow$ If Graph $G$ is eulerian then degree of each vertex is even with atmost one trivial component.As $G$ is Eulerian ,it means it must n...
Anand.
531
views
Anand.
asked
Dec 31, 2016
Graph Theory
graph-theory
engineering-mathematics
+
–
3
votes
1
answer
1099
Mean Value Theorem Question(Explain the concept)
A rail engine accelerates from its stationary position for 8 seconds and travels a distance of 280m. According to the Mean Value Theorem, the speedometer at a certain time during acceleration must read exactly. (A) 0km/h (B) 8km (C) 75km/h (D) 126km/h
A rail engine accelerates from its stationary position for 8 seconds and travels a distance of 280m. According to the Mean Value Theorem, the speedometer at a certain tim...
smartmeet
3.2k
views
smartmeet
asked
Dec 29, 2016
Calculus
calculus
mean-value-theorem
engineering-mathematics
+
–
1
votes
1
answer
1100
probability
players P1,P2,P3……… P16 play in a tournament. They are divided into eight pairs at random, from each pair a winner is decided on the basis of a game played between the two players of the pairs. Assuming that all the players are of equal strength, the probability that exactly one of the two players P1 and P2 is among the eight winners is ________.ans 8/15
players P1,P2,P3……… P16 play in a tournament. They are divided into eight pairs at random, from each pair a winner is decided on the basis of a game played between ...
Neal Caffery
506
views
Neal Caffery
asked
Dec 28, 2016
Probability
probability
engineering-mathematics
+
–
1
votes
1
answer
1101
probability
1) A total of 46% of the voters in a certain city classify themselves as Independents, where as 30% classify themselves as Liberals and 24% say they are Conservatives. In s recent local election, 35% of the Independents, 62% of the Liberals and 58% of ... Given that this child is the eldest child in the family, the conditional probability that the family has 4 children _______.ans 0.18
1) A total of 46% of the voters in a certain city classify themselves as Independents, where as 30% classify themselves as Liberals and 24% say they are Conservatives. In...
Neal Caffery
549
views
Neal Caffery
asked
Dec 27, 2016
Probability
probability
engineering-mathematics
+
–
0
votes
1
answer
1102
Math Probability
Consider the random variable X such that it takes values +1,-1 and +2 with probability 0.1 each .Calculate values of the commulative frequencydistribution function F(x) at x=-1 and x=1 and x=2 are ?
Consider the random variable X such that it takes values +1,-1 and +2 with probability 0.1 each .Calculate values of the commulative frequencydistribution function F(x) a...
Çșȇ ʛấẗẻ
288
views
Çșȇ ʛấẗẻ
asked
Dec 26, 2016
Mathematical Logic
engineering-mathematics
probability
+
–
2
votes
1
answer
1103
Maths
There are 2 white and 4 black balls in urn A; in urn B, there are 4 white and 7 black balls. If one ball is randomly replaced from A into B and a ball is drawn from B then find the probability for the ball to be a white one?
There are 2 white and 4 black balls in urn A; in urn B, there are 4 white and 7 black balls. If one ball is randomly replaced from A into B and a ball is drawn from B the...
Anmol Verma
496
views
Anmol Verma
asked
Dec 25, 2016
Probability
engineering-mathematics
probability
conditional-probability
+
–
0
votes
0
answers
1104
E = 2N -3
I read in https://gateoverflow.in/28955/given-vertex-edges-how-find-non-isomorphic-graphs-possible question explanantion,it was written that e=2n-3 where e= number of edges and n is no of vertices. how is it derived??can anyone tell me the source??
I read in https://gateoverflow.in/28955/given-vertex-edges-how-find-non-isomorphic-graphs-possible question explanantion,it was written that e=2n-3 where e= number of edg...
Akriti sood
153
views
Akriti sood
asked
Dec 24, 2016
Graph Theory
graph-theory
engineering-mathematics
+
–
0
votes
1
answer
1105
Is partial derivatives and euler's theorem (related to partial derivatives) in syllabus?
Is partial derivatives and euler's theorem in syllabus? Please clarify if any idea.
Is partial derivatives and euler's theorem in syllabus?Please clarify if any idea.
agoh
939
views
agoh
asked
Dec 24, 2016
Calculus
engineering-mathematics
+
–
0
votes
1
answer
1106
Calculus
$\lim_{x\rightarrow \pi } (1+\cos x)/\tan ^{2}x$
$\lim_{x\rightarrow \pi } (1+\cos x)/\tan ^{2}x$
Anmol Verma
326
views
Anmol Verma
asked
Dec 24, 2016
Calculus
calculus
engineering-mathematics
+
–
2
votes
1
answer
1107
Continuity
What should be the value of a,b and c such that the function defined below is continuous at x=0 ? $f\left ( x \right )=\begin{Bmatrix} \left ( 1+ax \right )^{\frac{1}{x}} & x<0 & \\ b & x=0& \\ \frac{(x+c)^{\frac{1}{3}}-1}{x} &x>0 & \end{Bmatrix}$
What should be the value of a,b and c such that the function defined below is continuous at x=0 ? $f\left ( x \right )=\begi...
ManojK
1.0k
views
ManojK
asked
Dec 19, 2016
Calculus
calculus
engineering-mathematics
continuity
+
–
4
votes
2
answers
1108
Probability ,Settheory.
$1)$ A random selector can only select one of the nine integers $\left \{ 1,2,.....,9 \right \}$ and it makes these selections with equal probability,Assume that $n$ numbers are chosen this way.Find the probability such that the product of $n$ numbers selected is not divisible by $3$. $2)$ Let S = {1, 2, . . . , n} then Find |{(R, T) : R, T ⊆ S, R ∩ T = ∅}| = ?
$1)$ A random selector can only select one of the nine integers $\left \{ 1,2,.....,9 \right \}$ and it makes these selections with equal probability,Assume that $n$ num...
Prabhanjan_1
1.3k
views
Prabhanjan_1
asked
Dec 19, 2016
Probability
engineering-mathematics
probability
set-theory&algebra
+
–
7
votes
1
answer
1109
Matrix characteristic Equation:Eigen Values
KISHALAY DAS
1.4k
views
KISHALAY DAS
asked
Dec 18, 2016
Linear Algebra
eigen-value
linear-algebra
engineering-mathematics
matrix
+
–
0
votes
1
answer
1110
maths solve
focus _GATE
308
views
focus _GATE
asked
Dec 17, 2016
Combinatory
engineering-mathematics
+
–
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