Recent questions tagged engineering-mathematics

0 votes
0 answers
181
Suppose that the cdf of X is given by:F(a) ={0 for a < 01/5 for 0 ≤ a < 22/5 for 2 ≤ a < 41 for a ≥ 4.}Determine the pmf of X.
1 votes
0 answers
182
Let R be the rate at which customers are served in a queue. Suppose that R isexponential with pdf f(r) = 2e^(−2r) on [0, ∞).Find the pdf of the waiting time per custo...
32 votes
14 answers
187
Let $G$ be an undirected complete graph on $n$ vertices, where $n 2$. Then, the number of different Hamiltonian cycles in $G$ is equal to$n!$$(n-1)!$$1$$\frac{(n-1)!}{2}...
14 votes
7 answers
188
Compute $\displaystyle \lim_{x \rightarrow 3} \frac{x^4-81}{2x^2-5x-3}$$1$$53/12$$108/7$Limit does not exist
26 votes
4 answers
191
33 votes
4 answers
192
Suppose $Y$ is distributed uniformly in the open interval $(1,6)$. The probability that the polynomial $3x^2 +6xY+3Y+6$ has only real roots is (rounded off to $1$ decimal...
0 votes
0 answers
193
Consider the following POSETs: Which of the above POSETs are isomorphic to (P (S), ⊆), where S = {a, b, c}?
0 votes
0 answers
194
0 votes
1 answer
198
4 votes
2 answers
199
Nullity of a matrix = Total number columns – Rank of that matrixBut how to calculate value of x when nullity is already given(1 in this case)
2 votes
3 answers
202
In a lottery, 10 tickets are drawn at random out of 50 tickets numbered from 1 to 50. What is the expected value of the sum of numbers on the drawn tickets?
3 votes
1 answer
203
0 votes
1 answer
204
how to prove determinant 1 and 2 are same by some row-column manipulation ,please Help??
0 votes
1 answer
205
The given table shows the result of the class of 30. Find the probability that a given student who is passed in exam is a girl?
2 votes
1 answer
208