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Recent questions tagged engineering-mathematics

1 vote

1 answer

1111

Probability (Expectation)
Suppose that the expectation of a random variable X is 5. Which of the following statements is true? (A) - There is a sample point at which the X has the value 5. (B) - There is a sample point at which the X has the value greater than 5. (C) - There is a sample point at which the X has the value greater than or equal to 5. (D) - None. Explain.

Hardik Vagadia asked in Mathematical Logic Dec 17, 2016

by Hardik Vagadia

913 views

1 vote

2 answers

1112

MadeEasy Test Series: Linear Algebra - Eigen Value
can we use some identity to find value of ab+by+ya???without finding its eigen values and then multiplying..earlier i have read it somewhere but i forget it.

Nishant Arora asked in Linear Algebra Dec 15, 2016

by Nishant Arora

696 views

0 votes

1 answer

1113

MadeEasy Test Series: Set Theory & Algebra - Groups
Which of the following is true? Every lower triangular matrix is group under multiplication operation where all elements of diagonal are non zero numbers. Every diagonal matrix is group under multiplication operation, where all elements of ... under addition operation where all elements are real numbers. Both (a) and b) Why is C incorrect?

Kai asked in Set Theory & Algebra Dec 15, 2016

by Kai

828 views

2 votes

3 answers

1114

Ace Test Series: Combinatory - Permutations And Combinations

KISHALAY DAS asked in Combinatory Dec 14, 2016

by KISHALAY DAS

1.0k views

1 vote

2 answers

1115

Probablity Problem

KISHALAY DAS asked in Probability Dec 12, 2016

by KISHALAY DAS

674 views

1 vote

1 answer

1116

graph
Which of the following statements is/are TRUE? [P] Every disconnected graph has an isolated vertex [Q] A graph is connected if and only if some vertex is connected to all other vertices [R] The edge set of every closed trail can be partitioned into edge sets of cycles [S] If a maximal trail in a graph is not closed, then its endpoints have odd degree

Neal Caffery asked in Graph Theory Dec 12, 2016

by Neal Caffery

2.7k views

0 votes

1 answer

1117

binomial theorem and expansions
can anyone please explain these things: formula for (1-x)n formula for 1/(1-x)n general term in expansion of (1-x)n and 1/(1-x)n and coeffecient of a term in these expansions. please elaborate a little because i have read few ... these things are used but i am getting very confused.i dun know much about them and gathering info from internet is also confusing me.

Akriti sood asked in Combinatory Dec 11, 2016

903 views

3 votes

1 answer

1118

probability
The average number of donuts a nine-year old child eats per month is uniformly distributed from 0.5 to 4 donuts, inclusive. Let X= the average number of donuts a nine-year-old child eats per month. Then X~∪(0.5,4) The probability that a different nine-year-old child eats an average of more than two donuts given that his or her amount is more than 1.5 donuts is ________. 4/5 1/5 2/5 3/5

Neal Caffery asked in Mathematical Logic Dec 11, 2016

by Neal Caffery

775 views

0 votes

3 answers

1119

cobinatory
Caption

focus _GATE asked in Mathematical Logic Dec 9, 2016

622 views

0 votes

1 answer

1120

Diffrentiability+Limits
how to solve diffrentiability with standard procedure of f(a+h).

Rahul Jain25 asked in Calculus Dec 9, 2016

by Rahul Jain25

695 views

0 votes

1 answer

1121

counting
A person has 8 friends, of whom 5 will be invited to a party.How many choices if 2 of the friends will only attend together??

dd asked in Probability Dec 9, 2016

by dd

411 views

0 votes

0 answers

1122

MadeEasy Test Series: Graph Theory - Graph Connectivity
if m=4 and n=6 (complete graph) option B says removal of mC2-n+2 = 6-6+2=2 edges. but it needs 3 edges to make the graph disconnected. how B is answer?

Anusha Motamarri asked in Graph Theory Dec 8, 2016

by Anusha Motamarri

844 views

3 votes

1 answer

1123

2 bulbs out of a sample of 10 bulbs manufactured by a company are defective.
2 bulbs out of a sample of 10 bulbs manufactured by a company are defective. The probability that 3 out of 4 bulbs bought by a customer will not be defective is

Akriti sood asked in Probability Nov 30, 2016

1.8k views

0 votes

1 answer

1124

The value of Z+1/225 = _
A = 2000 B = A – 999 C = A + B – 998 D = A + B + C – 997 . . . Z= A + B + C … + X – 975 The value of Z+1/225 = _______ 501 901 801 2048

Akriti sood asked in Linear Algebra Nov 29, 2016

330 views

0 votes

1 answer

1125

find the given expression

Akriti sood asked in Linear Algebra Nov 29, 2016

474 views

0 votes

1 answer

1126

The chromatic number and clique number of C'2k+1(k>3)
The chromatic number and clique number of C'2k+1(k>3) i.e. complement of odd cycle, are respectively ______ 3,2 3,k k,k k+1,k

Akriti sood asked in Graph Theory Nov 29, 2016

893 views

2 votes

2 answers

1127

In a bag, there are some balls of the same size that are colored by 7 colors
In a bag, there are some balls of the same size that are colored by 7 colors, and for each color the number of balls is 77. At least how many balls are needed to be picked out to ensure that one can obtain 7 groups of 7 balls each such that in each group the balls are monochromatic? 469 539 85

Akriti sood asked in Combinatory Nov 29, 2016

3.3k views

2 votes

1 answer

1128

Consider a post office that is staffed by two clerks. Suppose that when Miss. Granger enters the system

Akriti sood asked in Probability Nov 29, 2016

2.0k views

0 votes

1 answer

1129

Consider an experimenter that consists of counting the number of ∝- particles
Consider an experimenter that consists of counting the number of ∝- particles given off in a 1 second interval by 1 gram of radioactive material. If we know from past experience 3 on the average 3.2 such ∝- ... given off, what is a good approximation to the probability that no more than 2 ∝- particles will appear?

Akriti sood asked in Probability Nov 29, 2016

3.5k views

2 votes

1 answer

1130

clique number of graph is:
The clique number of graph is _____? can someone also explain what is clique number also?

Akriti sood asked in Graph Theory Nov 28, 2016

1.0k views

0 votes

0 answers

1131

If any 6 points are chosen on the perimeter of a circle,
The largest integer n that satisfies the following condition: If any 6 points are chosen on the perimeter of a circle, then we can draw semicircle of the circle, such that there are at least n points on it. ____

Akriti sood asked in Combinatory Nov 28, 2016

612 views

2 votes

2 answers

1132

Consider the graph G whose vertices are 4 element subsets of the set {1, 2, 3…10}
Consider the graph G whose vertices are 4 element subsets of the set {1, 2, 3…10} with two vertices adjacent if and only if their intersection is empty. Then the number of edges does G have _______

Akriti sood asked in Graph Theory Nov 28, 2016

2.7k views

1 vote

1 answer

1133

The possible number of faces of simple graph G with degree sequence 3, 3, 3, 3, 3, 3, 6 ______
The possible number of faces of simple graph G with degree sequence 3, 3, 3, 3, 3, 3, 6 ______ 5,6 6,7

Akriti sood asked in Graph Theory Nov 28, 2016

1.8k views

2 votes

1 answer

1134

Let G be a K-regular bipartite graph with k ≥ 2. Then G has no cut edge
how is this statement correct..can some one give an example?? Let G be a K-regular bipartite graph with k ≥ 2. Then G has no cut edge

Akriti sood asked in Graph Theory Nov 28, 2016

2.9k views

3 votes

1 answer

1135

find the inverse
Find the inverse function of the following= f(x)=2∙3x+9x log3⁡((√(x+1))+1) log3⁡((√(x+1))-1) log3⁡((√(x-1))+1) log3⁡((√(x+1))-2)

Akriti sood asked in Calculus Nov 27, 2016

501 views

1 vote

1 answer

1136

what is the probability you will see a full moon?
A full moon occurs every 29 nights. If you choose a night at random and then observe the night sky for 11 successive nights, what is the probability you will see a full moon? 0.03 0.11 0.38

Akriti sood asked in Probability Nov 27, 2016

1.7k views

0 votes

0 answers

1137

any good link for studying about normal distribution
please provide a good link for normal distribution Thankyou

Akriti sood asked in Unknown Category Nov 25, 2016

1.1k views

1 vote

0 answers

1138

Consider independent trails consisting of rolling a pair of fair dice, over and over
Consider independent trails consisting of rolling a pair of fair dice, over and over. What is the probability that a sum of 5 appears before sum of 7? 1/5 1/6 2/9 None of them

Akriti sood asked in Probability Nov 24, 2016

397 views

1 vote

1 answer

1139

IITM november 2016
What is the maximum possible value of (x%3)+((x+1)%3) here x be any positive integer

Aboveallplayer asked in Unknown Category Nov 23, 2016

by Aboveallplayer

480 views

0 votes

0 answers

1140

Which elements will be JOin Irreducible in D60 ?Compilements of 2 and 10 exists?
Which elements will be JOin Irreducible in D60 ? Whether complements of 2 and 10 exists or not? Express each number x as join of a minimum number of irredundant join irreducible elements.

LavTheRawkstar asked in Graph Theory Nov 19, 2016

by LavTheRawkstar

2.8k views

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Recent questions tagged engineering-mathematics