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Recent questions and answers in Probability
0
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0
answers
1
expectation doubt
Given a stick with n joints. The stick is dropped from certain height. During the fall, each joint breaks with probability p independent of other joints. What is the expected number of pieces into which the stick breaks ? Also, what is expected number of substicks of length =3.
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4 days
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Probability
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parulk
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529
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18
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#probability#expectation
0
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2
Probability
Parcels from sender to receiver pass sequentially through 2 post office.Each post office has a probability 1/5 of loosing an incoming parcel,independently of all other parcels.Given that a parcel is lost, the probabilty that it was lost by the second post office is....??
[closed]
asked
5 days
ago
in
Probability
by
vnk572
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7
points)

24
views
+1
vote
2
answers
3
PGEE 2018
4 person wearing different hat went to restaurant, they gave there hat to manager, manager has habit of forgetting thing while returning manager gave hat back to each person, probability that none of the person gets there respective hats is ?
answered
Aug 12
in
Probability
by
aditi19
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221
points)

140
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iiithpgee
probability
0
votes
0
answers
4
Let X be the number of times you and your friend get the same outcome. Then X is distributed as
asked
Aug 11
in
Probability
by
worst_engineer
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4.1k
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7
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probability
engineeringmathematics
0
votes
1
answer
5
Made Easy TestEM
In the above question, they have said that set A has elements replaced. But in solution, they have considered the same set for P and Q. I am not able to get it. Please explain
answered
Aug 9
in
Probability
by
Soumya29
Boss
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12.4k
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35
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engineeringmathematics
probability
0
votes
0
answers
6
Probability
We have applied Bernoulli equation to solve the answer. But, why the answer isn't C(90,5)÷C(100,5)?
asked
Aug 9
in
Probability
by
Arjun045
(
7
points)

15
views
binomialdistribution
probability
0
votes
0
answers
7
Probability
how do we get the answer ${\frac{1}{2}}^{k/5}$
asked
Aug 5
in
Probability
by
aditi19
(
221
points)

11
views
+4
votes
3
answers
8
Total probability and Baye's theorem
When we should use Total probability and Baye's Theorem? Explain with examples.
answered
Aug 4
in
Probability
by
Tesla_fan
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75
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133
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probability
engineeringmathematics
conditionalprobability
0
votes
0
answers
9
Testbooktestseriesprobability
asked
Aug 1
in
Probability
by
Prateek Raghuvanshi
Loyal
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5.3k
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37
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variance
+12
votes
2
answers
10
GATE19983a
Two friends agree to meet at a park with the following conditions. Each will reach the park between 4:00 pm and 5:00 pm and will see if the other has already arrived. If not, they will wait for 10 minutes or the end of the hour whichever is earlier and leave. What is the probability that the two will not meet?
answered
Aug 1
in
Probability
by
Prateek Raghuvanshi
Loyal
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5.3k
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891
views
gate1998
probability
normal
numericalanswers
+1
vote
1
answer
11
geeks for geeks
In a bunch of 13 Tshirts only one is of Medium size, which is correct fit for the searching person. Each time wrong size is picked, the person throws it away and pick the next Tshirt. What is the probability that the correct size Tshirt can be searched in 8th attempt ?
answered
Jul 30
in
Probability
by
Shaik Masthan
Boss
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16.4k
points)

43
views
0
votes
0
answers
12
probability win and loss
There are 2 players , say A and B . There are m+n+1 cards and A gets m cards and B gets n cards. 1 card is left behind. A personality is linked with each card. The game begins as A begins to guess the left out card . If B has the ... proceeds in this way. Now , what is the probability that A will win ? The probability must be accurate to 9 decimal places. ans:0.500000000
asked
Jul 29
in
Probability
by
avinash_thakur
(
15
points)

33
views
0
votes
3
answers
13
CMI 2018 (Probability)
Suppose you have two coins $A$ and $B$ the probability of head in $A$ is $\dfrac{1}{4}$ and the probability of head in $B$ is $\dfrac{3}{4}$. Now, suppose you have chosen a coin and tossed it two times. The output was head and head. What is the probability that you chose the coin $B$.
answered
Jul 28
in
Probability
by
aditi19
(
221
points)

146
views
usercmi2018
usermod
0
votes
1
answer
14
Sheldon Ross Chapter 2
If it is assumed that all (525) poker hands are equally likely, what is the probability of being dealt (a) a ﬂush? (A hand is said to be a ﬂush if all 5 cards are of the same suit.) (b) one pair? (This occurs when the cards have denominations a, a, b ... distinct.) (c) two pairs? (This occurs when the cards have denominations a, a, b, b, c, wherea, b, andc are all distinct.)
answered
Jul 28
in
Probability
by
aditi19
(
221
points)

17
views
0
votes
1
answer
15
engg math book
out of 800 families with 5 children each,how many families would be expected to have 1. 3boy 2. 2girls
answered
Jul 27
in
Probability
by
aditi19
(
221
points)

46
views
engineeringmathematics
0
votes
1
answer
16
Variation of Monty Hall Problem
You're in a game show. There are 100 doors. A Car is there behind one of those doors. 1. You pick a door. The host opens 98 other doors where the car is absent. What is the probability that the car is behind the door you picked and what ... . What is the probability that the car is behind the door 29 and what is the probability that the car is behind the door 92?
answered
Jul 25
in
Probability
by
Vinay Patel
(
27
points)

42
views
0
votes
0
answers
17
Gate 2009 ece
Assume for simplicity that N people are born in April (month of 30 days) are collected in a room,consider the event of at least two people in the room being born on the same date of month even if in different years i.e 1980 and 1985 what is the smallest N so that the probability exceeds 0.5 is
asked
Jul 21
in
Probability
by
priyanka manwani
(
61
points)

34
views
0
votes
0
answers
18
Probability by Blitztein
Martin and Gale play an exciting game of "toss the coin," where they toss a fair coin until the pattern HH occurs (two consecutive Heads) or the pattern TH occurs (Tails followed immediately by Heads). Martin wins the game if and only if HH occurs before TH occurs. Who is less or more likely to win?
asked
Jul 21
in
Probability
by
mohitjarvissharma
(
351
points)

46
views
probability
+11
votes
5
answers
19
TIFR2013A6
You are lost in the National park of Kabrastan. The park population consists of tourists and Kabrastanis. Tourists comprise twothirds of the population the park and give a correct answer to requests for directions with probability $\dfrac{3}{4}$. The air of Kabrastan has an amnesaic quality, ... )$ $\left(\dfrac{1}{2}\right)$ $\left(\dfrac{2}{3}\right)$ $\left(\dfrac{3}{4}\right)$
answered
Jul 10
in
Probability
by
Ayush Upadhyaya
Boss
(
11k
points)

453
views
tifr2013
probability
0
votes
0
answers
20
ugc net 2018 july80
asked
Jul 9
in
Probability
by
pream sagar
(
385
points)

115
views
0
votes
2
answers
21
Uniform Random variableSelf Doubt
I was reading the uniform random variable from sheldon ross it is given that X is a uniform random variable on the interval $(\alpha,\beta)$ if the probability density function of X is given by $f(x)=\left\{ \frac{1}{\beta\alpha}\, if \, \ ... \lt \beta\\1 \,\, a \geq \beta\right\}$ My query is how they derived the distribution function from the density function?
answered
Jul 9
in
Probability
by
srestha
Veteran
(
92.2k
points)

65
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randomvariable
probability
0
votes
1
answer
22
Probability
An automobile showroom has 10 cars,2 of which are defective.If you are going to buy the 6th car sold that day at random , then the probability of selecting a defective car is? Ans:0.15 Please explain this answer.
answered
Jul 8
in
Probability
by
Shubham Shukla 6
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(
3.7k
points)

99
views
0
votes
0
answers
23
Probability
https://gateoverflow.in/?qa=blob&qa_blobid=4276590990497954455 Explain ans. Of q.2
asked
Jul 8
in
Probability
by
rutvik shah 4
(
9
points)

23
views
0
votes
0
answers
24
ProbabilitySheldon Ross(Self Doubt)
I was reading probability from Sheldon Ross and found below example. A purchaser of electrical components buys them in lots of size 10. It is his policy to inspect 3 components from a lot and to accept the lot if all the 3 are nondefective. If 30 percent of ... why they have multiplied it with $\frac{3}{10}$ in the first part and $\frac{7}{10}$ in the second?
asked
Jul 7
in
Probability
by
Ayush Upadhyaya
Boss
(
11k
points)

82
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probability
sheldonross
randomvariable
0
votes
1
answer
25
ProbabilitySheldon Ross
An ordinary deck of 52 playing cards is randomly divided into 4 piles of 13 cards each. Compute the probability that each pile has exactly 1 ace.
answered
Jul 6
in
Probability
by
Shaik Masthan
Boss
(
16.4k
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58
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probability
sheldonross
+2
votes
2
answers
26
probability
Manish has to travel from A to D changing buses at stops B and C enroute.The maximum waiting time at either stop can be 8 minutes each,but any time of waiting upto 8 minutes is equally likely at both places.He can afford upto 13 minutes of waiting time if he is to arrive at D on time,What is probability Manish will arrive late at D?
answered
Jul 2
in
Probability
by
Hirak
(
83
points)

536
views
+6
votes
2
answers
27
UGCNETJune2016II4
There are three cards in a box. Both sides of one card are black, both sides of one card are red and the third card has one black side and one red side. We pick a card at random and observe only one side. What is the probability that the opposite side is the same colour as the one side we observed? 3/4 2/3 1/2 1/3
answered
Jul 1
in
Probability
by
Prasanjeet Ghosh
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1.6k
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1k
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ugcnetjune2016ii
engineeringmathematics
probability
+1
vote
0
answers
28
interview IIsc
Given a deck of 10 cards numbered 1 to 10. Select 3 cards one by one. Find the probability that selected cards is in increasing order. Eg : {1, 5, 7} or {8, 9, 10} etc
asked
Jul 1
in
Probability
by
Rishav Kumar Singh
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(
2.8k
points)

82
views
probability
permutationsandcombinations
0
votes
2
answers
29
self doubt
A fair coin is tossed until a head comes up for the first time. The probability of this happening on an odd number toss is?
answered
Jun 26
in
Probability
by
Prince Sindhiya
Active
(
2.3k
points)

54
views
discretemathematics
+1
vote
1
answer
30
Sheldon Ross Chapter 2
If it is assumed that all (52 5) poker hands are equally likely, what is the probability of being dealt (a) a ﬂush? (A hand is said to be a ﬂush if all 5 cards are of the same suit.) (b) one pair? (This occurs when the cards have denominations a, a, ... distinct.) (c) two pairs? (This occurs when the cards have denominations a, a, b, b, c, wherea, b, andc are all distinct.)
answered
Jun 23
in
Probability
by
neeraj33negi
(
443
points)

31
views
0
votes
0
answers
31
General
From last few days I am trying to solve Sheldon Ross problems. But not able to solve it. So those who have solved it kindly tell me how to strengthen the concepts as to solve the problems...........and also is the level of problems given in it are as per GATE requirement??
asked
Jun 16
in
Probability
by
mbisht
(
223
points)

16
views
+5
votes
3
answers
32
TIFR2010A13
A cube whose faces are colored is split into $1000$ small cubes of equal size. The cubes thus obtained are mixed thoroughly. The probability that a cube drawn at random will have exactly two colored faces is: $0.096$ $0.12$ $0.104$ $0.24$ None of the above
answered
Jun 15
in
Probability
by
sutanay3
Active
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2.2k
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404
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tifr2010
probability
+15
votes
7
answers
33
GATE200724
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
answered
Jun 14
in
Probability
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sutanay3
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2.7k
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gate2007
probability
easy
+7
votes
2
answers
34
GATE19942.8
Let $A, B$ and $C$ be independent events which occur with probabilities $0.8, 0.5$ and $0.3$ respectively. The probability of occurrence of at least one of the event is _____
answered
Jun 14
in
Probability
by
sutanay3
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2.2k
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384
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gate1994
probability
normal
numericalanswers
+13
votes
4
answers
35
GATE200827
Aishwarya studies either computer science or mathematics everyday. If she studies computer science on a day, then the probability that she studies mathematics the next day is $0.6$. If she studies mathematics on a day, then the probability that she studies computer ... science on Monday, what is the probability that she studies computer science on Wednesday? $0.24$ $0.36$ $0.4$ $0.6$
answered
Jun 13
in
Probability
by
Anand.
Active
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2.1k
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1.3k
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gate2008
probability
normal
+1
vote
2
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36
Mission IIT Screening Test
Raju and Rani are playing betting game. Raju rolls a dice and if 5 comes on face then they stop the game, else Raju needs to pay 1 rupee ro Rani and continue rolling. Expected no of rupees Rani gets in this game?
answered
Jun 11
in
Probability
by
Subarna Das
Boss
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11.2k
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87
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0
votes
2
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37
probability ques
answered
Jun 11
in
Probability
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Shaik Masthan
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16.4k
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66
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probability
+1
vote
1
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38
Mission IIT Screening Test
In a group of $11$ people what is the probability that at least two people have birthday on same day ?
answered
Jun 11
in
Probability
by
Subarna Das
Boss
(
11.2k
points)

310
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generalaptitude
numericalability
probability
+19
votes
2
answers
39
GATE201027
What is the probability that divisor of $10^{99}$ is a multiple of $10^{96}$? $\left(\dfrac{1}{625}\right)$ $\left(\dfrac{4}{625}\right)$ $\left(\dfrac{12}{625}\right)$ $\left(\dfrac{16}{625}\right)$
answered
Jun 11
in
Probability
by
sutanay3
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2.2k
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3.3k
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gate2010
probability
normal
+9
votes
2
answers
40
GATE 2015 EE How to find which coin is fair?
answered
Jun 10
in
Probability
by
sutanay3
Active
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2.2k
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305
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probability
gate2015ee
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