The Gateway to Computer Science Excellence
For all GATE CSE Questions
Toggle navigation
GATE Overflow
Facebook Login
Google Login
or
Email or Username
Password
Remember
Login
Register

I forgot my password
All Activity
Questions
Unanswered
Tags
Subjects
Users
Ask
Lists
Previous
Blogs
New Blog
Exams
First time here? Checkout the
FAQ
!
x
×
Close
Use the google search bar on side panel. It searches through all previous GATE/other questions. For hardcopy of previous year questions please see
here
Recent questions in Probability
Recent
Hot!
Most votes
Most answers
Most views
Featured
Previous GATE
Web Page
Random variables,
Uniform,
Normal,
Exponential,
Poisson
and
Binomial distributions.
Mean, median, mode and standard deviation.
Conditional probability and Bayes theorem
Recent
Hot!
Most votes
Most answers
Most views
Featured
Previous GATE
0
votes
1
answer
1
GATE ME 2018 Normal Distribution
Let X1, X2 be two independent normal random variables with means p1, p2 and standard deviations a1, a2 respectively. Consider Y =X1X2; µ1=µ2=1, σl=1, σ2=2. Then. (a) Y is normal distributed with mean 0 and variance 1 (b) Y is normally ... Y has mean 0 and variance 5, but is NOT normally distributed (d) Y has mean 0 and variance 1, but is NOT normally distributed
asked
2 days
ago
in
Probability
by
aditi19
Junior
(
863
points)

20
views
probability
normaldistribution
0
votes
0
answers
2
UGC net July 2018 Q84
Digital data received from a sensor can fill up 0 to 32 buffers. Let the sample space be S={0, 1, 2, ………., 32} where the sample j denote that j of the buffers are full and p(i) = 1 / 566 *(33 – i). Let A denote the event that the even number of buffers are full. Then p(A) is: (A) 0.515 (B) 0.785 (C) 0.758 (D) 0.485
[closed]
asked
2 days
ago
in
Probability
by
Dimpu1211
(
7
points)

8
views
+1
vote
1
answer
3
expected amount
Jessica is playing a game where there are 4 blue markers and 6 red markers in a box. She is going to pick 3 markers without replacement. If she picks all 3 red markers, she will win a total of $500. If the first marker she picks is red but not all 3 ... red, she will win a total of $100. Under any other outcome, she will win $0. What is the expected value of Jessica's winnings?
asked
Oct 7
in
Probability
by
Lone Wolf
Active
(
1.1k
points)

26
views
+1
vote
0
answers
4
Probability of missing the bus
You arrive at bus stop some time uniformly distributed between $10:00$ and $10:15$ and bus leaves the bus stop sometime uniformly distributed between $10:00$ and $10:25$. What is the probability of you missing the bus?
asked
Oct 5
in
Probability
by
Mk Utkarsh
Boss
(
20.1k
points)

54
views
probability
uniformdistribution
+1
vote
0
answers
5
TestBook Probability
Consider the production of iron rods having diameter X which is normally distributed with mean 2 in. and standard deviation 0.008 in. Using $\phi$(0.25) = 0.99, where $\phi$ is the cumulative distribution function (c.d.f.) of a standard normal ... standard deviation 1, the percentage of defectives we can expect if we set the tolerance limits at 2 0.02 in is _______ .
asked
Oct 4
in
Probability
by
Mk Utkarsh
Boss
(
20.1k
points)

33
views
testbooktestseries
probability
0
votes
0
answers
6
InclusionExclusion
$N$ people toss their hat into a bin, randomly shuffled, returned one hat to each person. What is the probability that $5$th person got his own hat?
asked
Oct 4
in
Probability
by
srestha
Veteran
(
98.4k
points)

57
views
discretemathematics
probability
inclusionexclusion
+1
vote
1
answer
7
Birthday Paradox
In a room of $23$ people what is the probability that $2$ of. them has a birthday in common?
asked
Oct 4
in
Probability
by
srestha
Veteran
(
98.4k
points)

81
views
probability
birthday
0
votes
0
answers
8
Sheldon Ross Chapter 2.7
The chess clubs of two schools consists of, respectively, 8 and 9 players. Four members from each club are randomly chosen to participate in a contest between the two schools. The chosen players from one team are then randomly paired with those from the ... schools but will not play each other? (c) exactly one of Rebecca and Elise will be chosen to represent her school?
asked
Oct 2
in
Probability
by
Abhijit Sen 4
(
299
points)

5
views
0
votes
1
answer
9
MADE EASY TEST SERIES QUESTION
asked
Oct 2
in
Probability
by
Shankar Kakde
(
127
points)

31
views
0
votes
0
answers
10
ME2018 Set 1 Probability
A six faced fair dice is rolled five times. what is the probability of obtaining "ONE" atleast 4 times?
asked
Sep 27
in
Probability
by
aditi19
Junior
(
863
points)

38
views
gate2018analysis
probability
0
votes
0
answers
11
Probability Gravner 82.c
Roll a die $n$ times and let $M$ be the number of times you roll $6$. Assume that $n$ is large. (c) How large should $n$ be so that the probability in(b) is larger than $0.99$?
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

18
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
12
Probability Gravner 82.b
Roll a die $n$ times and let $M$ be the number of times you roll $6$. Assume that $n$ is large. (b) Write down an approximation, in terms on $n$ and $\phi$, of the probability that $M$ differs from its expectation by less than $10$ %
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

9
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
13
Probability Gravner 82.a
Roll a die $n$ times and let $M$ be the number of times you roll $6$. Assume that $n$ is large. (a) Compute the expectation $EM$.
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

13
views
gravner
probability
engineeringmathematics
randomvariable
0
votes
0
answers
14
Probability Gravner 81.b
Toss a fair coin twice. You win $1$ dollar if at least one of the two tosses comes out heads. (b) Approximately how many times do you need to play so that you win at least $250$ dollar with probability at least $0.99$.
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

12
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
15
Probability Gravner 81.a
Toss a fair coin twice. You win $1$ dollar if at least one of the two tosses comes out heads. (a) Assume that you play this game $300$ times. What is, approximately, the probability that you win at least $250$ dollar ?
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

8
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
16
Probability Gravner 80.c
After your complaint about their service, a representative of an insurance company promised to call you "between $7$ and $9$ this evening." Assume that this means that the time $T$ of the call is uniformly distributed in the specified interval. (c) ... $M$ be the amount of time of the show that you miss because of th call. Compute the expected value of $M$.
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

8
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
17
Probability Gravner 80.b
After your complaint about their service, a representative of an insurance company promised to call you "between $7$ and $9$ this evening." Assume that this means that the time $T$ of the call is uniformly distributed in the specified interval (b) At $8.30$, the call still hasn't arrived. What is the probability that it arrives in the next $10$ minutes?
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

3
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
18
Probability Gravner 80
After your complaint about their service, a representative of an insurance company promised to call you "between $7$ and $9$ this evening." Assume that this means that the time $T$ of the call is uniformly distributed in the specified interval. (a) Compute the probability that the call arrives between $8.30$ and $8.20$.
asked
Sep 27
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

4
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
19
GATE 200724, https://gateoverflow.in/1222/gate200724
asked
Sep 27
in
Probability
by
sakharam
Active
(
2.3k
points)

37
views
probability
0
votes
0
answers
20
Probability Gravner 79.c
A random variable $X$ has the density function $f(x)= \begin{Bmatrix} c(x+\sqrt{x}) & x\epsilon [0,1]\\ 0& otherwise \end{Bmatrix}.$ (c) Determine the probability density function of $Y$ $=$ $X^2$
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

7
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
21
Probability Gravner 79.b
A random variable $X$ has the density function $f(x)= \begin{Bmatrix} c(x+\sqrt{x}) & x\epsilon [0,1]\\ 0& otherwise \end{Bmatrix}.$ (b) Compute $\text{E(1/X)}$.
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

4
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
1
answer
22
Probability Gravner 79.a
A random variable $X$ has the density function $f(x)= \begin{Bmatrix} c(x+\sqrt{x}) & x\epsilon [0,1]\\ 0& otherwise \end{Bmatrix}.$ (a) Determine c.
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

14
views
gravner
probability
engineeringmathematics
randomvariable
0
votes
1
answer
23
Probability Gravner 78
How many times do you need to toss a fair coin to get $100$ heads with probability $90$%?
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

11
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
24
Probability Gravner 77
A roulette wheel has $38$ slots: $18$ red, $18$ red, $2$ green. The ball ends at one of these at random. You are a player who plays a large number of games and makes an even bet of $1$ dollar on red in every game. After $n$ games, what is the probability that you are ahead? Answer this for $n=100$ and $n= 1000$.
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

2
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
2
answers
25
Probability Gravner 76
Assume that $X$ is Normal with mean $\mu$ $=$ $2$ and variance $\sigma^2$ $=$ $25$. Compute the probability that $X$ is between $1$ and $4$.
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

20
views
probability
gravner
engineeringmathematics
randomvariable
normaldistribution
0
votes
1
answer
26
Probability Gravner 75.c
What is the probability that a Normal random variable differs from its mean $\mu$ by more than 3 $\sigma$ ?
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

8
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
1
answer
27
Probability Gravner 75.b
What is the probability that a Normal random variable differs from its mean $\mu$ by more than 2 $\sigma$ ?
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

5
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
28
Probability Gravner 75.a
What is the probability that a Normal random variable differs from its mean $\mu$ by more than $\sigma$ ?
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

4
views
gravner
probability
engineeringmathematics
randomvariable
+1
vote
0
answers
29
Probability  Gravner74
Let X be a $N(\mu , \sigma^2)$ random variable and let $Y = \alpha X+\beta$, with $\alpha$ > $0$. How is $Y$ distributed?
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

8
views
probability
gravner
engineeringmathematics
randomvariable
0
votes
0
answers
30
Probability  Gravner73
Assume that a light bulb lasts on average $100$ hours. Assuming exponential distribution, compute the probability that it lasts more than $200$ hours and the probability that it lasts less than $50$ hours.
asked
Sep 26
in
Probability
by
Pooja Khatri
Active
(
4.3k
points)

5
views
probability
gravner
engineeringmathematics
randomvariable
Page:
1
2
3
4
5
6
...
28
next »
Quick search syntax
tags
tag:apple
author
user:martin
title
title:apple
content
content:apple
exclude
tag:apple
force match
+apple
views
views:100
score
score:10
answers
answers:2
is accepted
isaccepted:true
is closed
isclosed:true
Members at the site
Shaik Masthan
Digvijay Pandey
Registered user 48
Recent Posts
List of Available Exams
New Assignment on Network programming : P2P simulation
Theory of Computation  GO Classroom
Probability  GO Classroom
Daily Quiz
All categories
General Aptitude
1.4k
Engineering Mathematics
5.9k
Discrete Mathematics
4.1k
Probability
840
Linear Algebra
564
Calculus
413
Digital Logic
2.3k
Programming & DS
4.3k
Algorithms
3.7k
Theory of Computation
4.6k
Compiler Design
1.7k
Operating System
3.4k
Databases
3.4k
CO & Architecture
2.9k
Computer Networks
3.4k
Non GATE
1.2k
Others
1.3k
Admissions
506
Exam Queries
482
Tier 1 Placement Questions
22
Job Queries
64
Projects
15
Follow @csegate
Gatecse
Recent questions in Probability
Recent Blog Comments
Nice 2 know. You are welcome. :)
Hello @Arjun, I got books now...thanks for your...
You may contact FedEx local delivery office. It...
Yes you are right, it's showing this status from...
FedEx delivery is shown and as per that it is out...
40,903
questions
47,558
answers
146,288
comments
62,305
users