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BS Gerewal engineering mathematics
hey guys, what is meant by the statement “cards are drawn in succession” . does it means whether one by one the cards were drawn OR all the cards were drawn at once any help is really appreciated….
asked
1 day
ago
in
Probability
by
rish1602
(
9
points)

7
views
discretemaths
combinatory
counting
0
votes
2
answers
online search
There are 10 pairs of shoes in a cupboard, from which 4 shoes are picked at random, then find the probability of at least one pair.
asked
Oct 20
in
Probability
by
ajay05908
(
5
points)

31
views
selfdoubt
0
votes
0
answers
MADEEASY WORK BOOK
THE AVERAGE DEVIATION OF ALL THE ITEMS IN THE DATA FROM ZERO IS EQUAL TO………… ARITHMETIC MEAN MEDIAN, MODE, STANDARD DEVIATION , VARIANCE I THINK ITS MEAN……? IS IT CORRECT?
asked
Oct 20
in
Probability
by
eyeamgj
(
21
points)

12
views
0
votes
2
answers
About Random Variable
From where to read random variable beacause in gate there are lot of tricky question asked Specially from uniform ,normal ,poisson,exponential random variable. So please give me some hint
asked
Oct 9
in
Probability
by
Shubham Kumar Das
(
5
points)

12
views
0
votes
0
answers
Exponential Distribution (probability)  self doubts
asked
Sep 21
in
Probability
by
Dipankar Giri
(
5
points)

14
views
probability
0
votes
0
answers
Uniform Distribution (Probability)Self doubts
What is Uniform Distribution in Probability?? Please discuss it with example!!! Thank you!!!
asked
Sep 21
in
Probability
by
Dipankar Giri
(
5
points)

11
views
probability
0
votes
1
answer
ROSEN question on Probability
find p(F I E) If p(E I F) = 1/3, p(E I F’) = 1/4, and p(F) = 2/3, where E and F are events from a sample space S. Is p(F I E) 11/12?
asked
Sep 14
in
Probability
by
Shashank Rustagi
(
513
points)

29
views
+1
vote
1
answer
Gravner Probability Exercise
asked
Sep 7
in
Probability
by
Mellophi
(
333
points)

41
views
probability
0
votes
0
answers
made easy # q num 20
Two fair dices are rolled and the sum r of the numbers are turned up is considered then find pr(r=8r/4 is an integer.
asked
Aug 29
in
Probability
by
k.saurav
(
5
points)

8
views
0
votes
2
answers
#GATE_PI_2018
In a service centre, cars arrive according to possion distribution with a mean of two cars per hour. The time of servicing a car is exponential with a mean of 15 minutes. The expected waiting time(in minutes) in the queue is (A)10 (B)15 (C)25 (D)30 how to solve this type of question?
asked
Aug 27
in
Probability
by
Gyanu
(
7
points)

44
views
+1
vote
4
answers
probability basic
In a family with 4 children, what is the probability of a 2:2 boygirl split?
asked
Aug 20
in
Probability
by
akshita_jain
(
17
points)

208
views
probability
0
votes
1
answer
Combinatorics and Probability
Six people, including A,B, and C, form a queue in a random order (all 6! orderings are equiprobable). Consider the event "B is between A and C in the queue". What is its probability? (The order of A and C can be arbitrary, but B should be between them).
asked
Aug 5
in
Probability
by
aryashah2k
(
2
points)

19
views
permutation&combination
conditionalprobability
discretemaths
probability
combinatory
0
votes
2
answers
Combinatorics and Probability
Six people including A,B, and C, form a queue in a random order (all 6! orderings are equiprobable). Consider the event "A precedes B in the queue". (Again this event does not mention C or other people in the queue. It happens when A is ... not require that B is the next after A, some people could be between A and B.) What is the probability of this event?
asked
Aug 5
in
Probability
by
aryashah2k
(
2
points)

153
views
conditionalprobability
permutation&combination
discretemaths
probability
0
votes
1
answer
MIT OCW Probability Assignment 02
1. Most mornings, Victor checks the weather report before deciding whether to carry an umbrella. If the forecast is rain, the probability of actually having rain that day is 80%. On the other hand, if the forecast is no rain, the probability ... rain if it was during the winter? What is the probability that the forecast was rain if it was during the summer?
asked
Jul 20
in
Probability
by
neeraj_bhatt
(
475
points)

30
views
conditionalprobability
0
votes
2
answers
TCS MockVita 2020 , Lazy Student
There is a test of Algorithms. Teacher provides a question bank consisting of N questions and guarantees all the questions in the test will be from this question bank. Due to lack of time and his laziness, Codu could only practice M questions. There ... problems. Codu can't solve the question he didn't practice. What is the probability that Codu will pass the test?
asked
Jul 2
in
Probability
by
pravincesingh
(
5
points)

101
views
probability
tcs
0
votes
1
answer
What are the relevant chapter in Gravner for Probability ?
asked
Jun 26
in
Probability
by
Raj_81
(
7
points)

14
views
gravner
probability
0
votes
3
answers
Expectation : Self Doubt
There is a bag containing 5 white and 5 black balls. You repeat the following experiment till you see a white ball : take a ball uniformly at random out of the bag. If it is white, stop. Otherwise, put it back in the bag. What is the expected number of times you will need to draw a ball from the bag ?
asked
Jun 19
in
Probability
by
suparna kar
(
9
points)

132
views
discretemaths
expectation
0
votes
1
answer
#self doubt why is the method wrong to solve the problem
asked
Jun 12
in
Probability
by
abhijeet at
(
7
points)

17
views
combinatory
cards
probability
0
votes
1
answer
A first course in probability by Ross
Let A denote the event that the midtown temperature in Los Angeles is 70◦F, and let B denote the event that the midtown temperature in New York is 70◦F. Also, let C denote the event that the maximum of the midtown temperatures in New York and in Los ... ,P(B) =.4, and P(C) = .2, find the probability that the minimum of the two midtown temperatures is 70◦F.
asked
May 21
in
Probability
by
Neelam_$ingh_222
(
5
points)

47
views
0
votes
2
answers
#A First Course In Probability Sheldon Ross #self_doubt
asked
May 21
in
Probability
by
Neelam_$ingh_222
(
5
points)

17
views
selfdoubt
probability
0
votes
1
answer
A first course in probability by Ross
A basketball team consists of 6 frontcourt and 4 backcourt players. If players are divided into roommates at random, what is the probability that there will be exactly two roommate pairs made up of a backcourt and a frontcourt player?
asked
May 21
in
Probability
by
Neelam_$ingh_222
(
5
points)

41
views
probability
0
votes
1
answer
A first course in probability
Let A denote the event that the midtown temperature in Los Angeles is 70◦F, and let B denote the event that the midtown temperature in New York is 70◦F. Also, let C denote the event that the maximum of the midtown temperatures in New York and in Los Angeles is ... ,P(B) = .4, and P(C) = .2, find the probability that the minimum of the two midtown temperatures is 70◦F.
asked
May 21
in
Probability
by
Neelam_$ingh_222
(
5
points)

30
views
probability
0
votes
0
answers
GATE201233 Video Solution
Suppose a fair sixsided die is rolled once. If the value on the die is $1, 2,$ or $3,$ the die is rolled a second time. What is the probability that the sum total of values that turn up is at least $6$ ? $\dfrac{10}{21}$ $\dfrac{5}{12}$ $\dfrac{2}{3}$ $\dfrac{1}{6}$
asked
Apr 18
in
Probability
by
admin
(
193
points)

8
views
gate2012
probability
conditionalprobability
normal
videosolution
0
votes
0
answers
GATE2017119 Video Solution
Let $X$ be a Gaussian random variable with mean 0 and variance $\sigma ^{2}$. Let $Y$ = $\max\left ( X,0 \right )$ where $\max\left ( a,b \right )$ is the maximum of $a$ and $b$. The median of $Y$ is ______________ .
asked
Apr 18
in
Probability
by
admin
(
193
points)

5
views
gate20171
probability
numericalanswers
normaldistribution
videosolution
0
votes
0
answers
GATE201412 Video Solution
Suppose you break a stick of unit length at a point chosen uniformly at random. Then the expected length of the shorter stick is ________ .
asked
Apr 18
in
Probability
by
admin
(
193
points)

4
views
gate20141
probability
uniformdistribution
expectation
numericalanswers
normal
videosolution
0
votes
0
answers
GATE2005IT32 Video Solution
An unbiased coin is tossed repeatedly until the outcome of two successive tosses is the same. Assuming that the trials are independent, the expected number of tosses is $3$ $4$ $5$ $6$
asked
Apr 18
in
Probability
by
admin
(
193
points)

5
views
gate2005it
probability
binomialdistribution
expectation
normal
videosolution
0
votes
0
answers
GATE19941.4, ISRO20172 Video Solution
Let $A$ and $B$ be any two arbitrary events, then, which one of the following is TRUE? $P (A \cap B) = P(A)P(B)$ $P (A \cup B) = P(A)+P(B)$ $P (A \mid B) = P(A \cap B)P(B)$ $P (A \cup B) \leq P(A) + P(B)$
asked
Apr 18
in
Probability
by
admin
(
193
points)

7
views
gate1994
probability
conditionalprobability
normal
isro2017
videosolution
0
votes
0
answers
GATE201324 Video Solution
Consider an undirected random graph of eight vertices. The probability that there is an edge between a pair of vertices is $\dfrac{1}{2}.$ What is the expected number of unordered cycles of length three? $\dfrac {1}{8}$ $1$ $7$ $8$
asked
Apr 18
in
Probability
by
admin
(
193
points)

5
views
gate2013
probability
expectation
normal
videosolution
0
votes
0
answers
GATE201027 Video Solution
What is the probability that divisor of $10^{99}$ is a multiple of $10^{96}$? $\left(\dfrac{1}{625}\right)$ $\left(\dfrac{4}{625}\right)$ $\left(\dfrac{12}{625}\right)$ $\left(\dfrac{16}{625}\right)$
asked
Apr 18
in
Probability
by
admin
(
193
points)

7
views
gate2010
probability
normal
videosolution
0
votes
0
answers
GATE2017231 Video Solution
For any discrete random variable $X$, with probability mass function $P(X=j)=p_j, p_j \geq 0, j \in \{0, \dots , N \}$, and $\Sigma_{j=0}^N \: p_j =1$, define the polynomial function $g_x(z) = \Sigma_{j=0}^N \: p_j \: z^j$. For a certain discrete ... . The expectation of $Y$ is $N \beta(1\beta)$ $N \beta$ $N (1\beta)$ Not expressible in terms of $N$ and $\beta$ alone
asked
Apr 18
in
Probability
by
admin
(
193
points)

11
views
gate20172
probability
randomvariable
videosolution
0
votes
0
answers
GATE2017248 Video Solution
If a random variable $X$ has a Poisson distribution with mean $5$, then the expectation $E\left [ \left ( x+2 \right )^{2} \right ]$ equals ___.
asked
Apr 18
in
Probability
by
admin
(
193
points)

3
views
gate20172
expectation
poissondistribution
numericalanswers
probability
videosolution
0
votes
0
answers
GATE200829 Video Solution
Let $X$ be a random variable following normal distribution with mean $+1$ and variance $4$. Let $Y$ be another normal variable with mean $1$ and variance unknown. If $P (X ≤ 1) = P (Y ≥ 2)$ , the standard deviation of $Y$ is $3$ $2$ $\sqrt{2}$ $1$
asked
Apr 18
in
Probability
by
admin
(
193
points)

6
views
gate2008
randomvariable
normaldistribution
probability
normal
videosolution
0
votes
0
answers
GATE200724 Video Solution
Suppose we uniformly and randomly select a permutation from the $20 !$ permutations of $1, 2, 3\ldots ,20.$ What is the probability that $2$ appears at an earlier position than any other even number in the selected permutation? $\left(\dfrac{1}{2} \right)$ $\left(\dfrac{1}{10}\right)$ $\left(\dfrac{9!}{20!}\right)$ None of these
asked
Apr 18
in
Probability
by
admin
(
193
points)

4
views
gate2007
probability
easy
uniformdistribution
videosolution
0
votes
0
answers
GATE201844 Video Solution
Consider Guwahati, (G) and Delhi (D) whose temperatures can be classified as high $(H)$, medium $(M)$ and low $(L)$. Let $P(H_G)$ denote the probability that Guwahati has high temperature. Similarly, $P(M_G)$ and $P(L_G)$ ... , then the probability (correct to two decimal places) that Guwahati has high temperature given that Delhi has high temperature is _____
asked
Apr 18
in
Probability
by
admin
(
193
points)

7
views
gate2018
probability
conditionalprobability
numericalanswers
videosolution
0
votes
0
answers
GATE201947 Video Solution
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 place) _______
asked
Apr 18
in
Probability
by
admin
(
193
points)

7
views
gate2019
numericalanswers
engineeringmathematics
probability
uniformdistribution
videosolution
0
votes
0
answers
GATE20012.4 Video Solution
Seven (distinct) car accidents occurred in a week. What is the probability that they all occurred on the same day? $\dfrac{1}{7^7}\\$ $\dfrac{1}{7^6}\\$ $\dfrac{1}{2^7}\\$ $\dfrac{7}{2^7}\\$
asked
Apr 18
in
Probability
by
admin
(
193
points)

1
view
gate2001
probability
normal
videosolution
0
votes
0
answers
GATE2017226 Video Solution
$P$ and $Q$ are considering to apply for a job. The probability that $P$ applies for the job is $\dfrac{1}{4},$ the probability that $P$ applies for the job given that $Q$ applies for the job is $\dfrac{1}{2},$ and the probability that $Q$ applies for the job ... $\left(\dfrac{5}{6}\right)$ $\left(\dfrac{7}{8}\right)$ $\left(\dfrac{11}{12}\right)$
asked
Apr 18
in
Probability
by
admin
(
193
points)

4
views
gate20172
probability
conditionalprobability
videosolution
0
votes
0
answers
GATE200921 Video Solution
An unbalanced dice (with $6$ faces, numbered from $1$ to $6$) is thrown. The probability that the face value is odd is $90\%$ of the probability that the face value is even. The probability of getting any even numbered face is the same. If the probability ... following options is closest to the probability that the face value exceeds $3$? $0.453$ $0.468$ $0.485$ $0.492$
asked
Apr 18
in
Probability
by
admin
(
193
points)

6
views
gate2009
probability
normal
videosolution
0
votes
0
answers
GATE2016129 Video Solution
Consider the following experiment. Step 1. Flip a fair coin twice. Step 2. If the outcomes are (TAILS, HEADS) then output $Y$ and stop. Step 3. If the outcomes are either (HEADS, HEADS) or (HEADS, TAILS), then output $N$ and stop. Step 4. If the ... (TAILS, TAILS), then go to Step 1. The probability that the output of the experiment is $Y$ is (up to two decimal places)
asked
Apr 18
in
Probability
by
admin
(
193
points)

9
views
gate20161
probability
normal
numericalanswers
videosolution
0
votes
0
answers
GATE2004IT33 Video Solution
Let $X$ and $Y$ be two exponentially distributed and independent random variables with mean $α$ and $β$, respectively. If $Z$ = min $(X, Y)$, then the mean of $Z$ is given by $\left(\dfrac{1}{\alpha + \beta}\right)$ $\min (\alpha, \beta)$ $\left(\dfrac{\alpha\beta}{\alpha + \beta}\right)$ $\alpha + \beta$
asked
Apr 18
in
Probability
by
admin
(
193
points)

4
views
gate2004it
probability
exponentialdistribution
randomvariable
normal
videosolution
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