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Webpage for Probability
Recent questions tagged probability
1
votes
1
answer
901
probability
India plays two matches each with West Indies and Srilanka. In any match the probabilities of India getting points 0,1 and 2 are 0.45,0.05 and 0.50 respectively. Assuming that the outcomes are independent, the probability of India getting at least 7 points is? a) 0.8750 b) 0.0875 c) 0.0625 d) 0.0250
India plays two matches each with West Indies and Srilanka. In any match the probabilities of India getting points 0,1 and 2 are 0.45,0.05 and 0.50 respectively. Assuming...
gabbar
642
views
gabbar
asked
Jul 11, 2017
Probability
probability
engineering-mathematics
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1
votes
1
answer
902
Probability posion distribtuion
the tailors in the stitching shop on an average stitches 3 shorts in an hour,stitching has a poison distribution.During a particular hour ,what is the probability that number of shirts stitched are 5 or more? a) .8571 b.) .8152 c.) .1848 d.).1439
the tailors in the stitching shop on an average stitches 3 shorts in an hour,stitching has a poison distribution.During a particular hour ,what is the probability that nu...
rahul sharma 5
546
views
rahul sharma 5
asked
Jul 1, 2017
Probability
probability
engineering-mathematics
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5
votes
1
answer
903
Mathematics: Gate EE 17
Assume that in a traffic junction, the cycle of traffic signal lights is 2 minutes of green(vehicle does not stop) and 3 minutes of red (vehicle stops). Consider the arrival time of vehicles at the junction is uniformly distributed over 5 minute cycle. The expected waiting time in minutes for the vehicle at the junction is _________
Assume that in a traffic junction, the cycle of traffic signal lights is 2 minutes of green(vehicle does not stop) and 3 minutes of red (vehicle stops). Consider the arri...
Amitesh Sharma
4.9k
views
Amitesh Sharma
asked
Jun 28, 2017
Probability
probability
uniform-distribution
gate2017-ee
engineering-mathematics
numerical-answers
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2
votes
1
answer
904
Sheldon Ross Chapter 1 Example 3c
Ms. Jones has 10 books that she is going to put on her bookshelf. Of these, 4 are mathematics books, 3 are chemistry books, 2 are history books, and 1 is a language book. Ms. Jones wants to arrange her books so ... subject are together on the shelf. How many different arrangements are possible? Please provide a different explanation rather than the textbook one.
Ms. Jones has 10 books that she is going to put on her bookshelf. Of these, 4 are mathematics books, 3 are chemistry books, 2 are history books, and 1 is a language book....
thehobo03
557
views
thehobo03
asked
Jun 27, 2017
Combinatory
probability
discrete-mathematics
combinatory
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2
votes
0
answers
905
[Gate 2006 EC] Probability
Three companies, X, Y and Z supply computers to a university. The percentage of computers supplied by them and the probability of those being defective are tabulated below. Company % of computers supplied Probability of being defective X 60% 0.01 Y 30% ... ;t think that they are mutually exclusive as Supplying of x does not mean that y wont supply.Please clear this doubt.
Three companies, X, Y and Z supply computers to a university. The percentage of computers supplied by them and the probability of those being defective are tabulated belo...
rahul sharma 5
1.3k
views
rahul sharma 5
asked
Jun 25, 2017
Probability
engineering-mathematics
probability
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2
votes
1
answer
906
Probability
P( A union B)=.6 P( A intersection B)=.25 Find P(A`) +P(B`) ? where P(A`) means probability of A complement.
P( A union B)=.6P( A intersection B)=.25Find P(A ) +P(B ) ? where P(A ) means probability of A complement.
rahul sharma 5
437
views
rahul sharma 5
asked
Jun 24, 2017
Mathematical Logic
probability
engineering-mathematics
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1
votes
1
answer
907
IISc PhD
A bag contains Red Balls and Black Balls. Two balls are drawn without replacement. The probability that both the balls drawn are red is 1/2. What is the minimum number of Red and Black Balls for which this probability is satisfied?
A bag contains Red Balls and Black Balls. Two balls are drawn without replacement. The probability that both the balls drawn are red is 1/2. What is the minimum number of...
kauray
365
views
kauray
asked
Jun 11, 2017
Probability
iisc
probability
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1
votes
1
answer
908
Sheldon Ross chapter 2 questions 26
The game of craps is played as follows: A player rolls two dice. If the sum of the dice is either a 2, 3, or 12, the player loses; if the sum is either a 7 or an 11, the player wins. If the outcome is anything else, the player continues to roll the ... the initial sum is i and the player wins on the nth roll. Argue that P(Ei) =$\sum_{n=1}^{infinte}$ P(Ei,n).
The game of craps is played as follows: A player rolls two dice. If the sum of the dice is either a 2, 3, or 12, the player loses; if the sum is either a 7 or an 11, the ...
bhuv
2.0k
views
bhuv
asked
Jun 8, 2017
Probability
probability
discrete-mathematics
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2
votes
1
answer
909
sheldon ross, chapter 2, question 17
If 8 rooks are randomly placed on a chessboard, compute the probability that none of the rooks can caputre any of the others. That is compute the probability that no row or file contains more than one rook.
If 8 rooks are randomly placed on a chessboard, compute the probability that none of the rooks can caputre any of the others. That is compute the probability that no row ...
bhuv
1.3k
views
bhuv
asked
Jun 8, 2017
Probability
probability
discrete-mathematics
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1
votes
2
answers
910
Probability of dice
If 4 dice tossed together , what is the probability of sum of these dice will be exactly 20? (want to see some shortcut procedure)
If 4 dice tossed together , what is the probability of sum of these dice will be exactly 20? (want to see some shortcut procedure)
srestha
1.2k
views
srestha
asked
Jun 4, 2017
Probability
probability
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0
votes
2
answers
911
Probability puzzles
A grasshopper is sitting on a little stone, which we'll call stone zero. Ahead of him, arranged in a line, are stones one, two, three, et cetera, all the way up to nine. The grasshopper would like to reach that ninth stone, for reasons ... two: he could take one big jump, or two little ones. How many different paths can the grasshopper take to reach his destination?
A grasshopper is sitting on a little stone, which we'll call stone zero. Ahead of him, arranged in a line, are stones one, two, three, et cetera, all the way up to nine. ...
Purple
1.3k
views
Purple
asked
May 23, 2017
Probability
probability
engineering-mathematics
conditional-probability
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4
votes
0
answers
912
Probbility puzzles
Three men - conveniently named A, B, and C - are fighting a duel with pistols. It's A's turn to shoot. The rules of this duel are rather peculiar: the duelists do not all shoot simultaneously, but instead take turns. A fires at B, B fires ... B is a better shot, and hits with probability 0.75 - all shots are independent. What's the probability that A wins the duel?
Three men — conveniently named A, B, and C — are fighting a duel with pistols. It's A's turn to shoot. The rules of this duel are rather peculiar: the duelists do not...
Purple
1.2k
views
Purple
asked
May 23, 2017
Probability
probability
conditional-probability
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0
votes
0
answers
913
Kenneth Rosen Edition 7 Exercise 7.3 Example 2 (Page No. 471)
Suppose that one person in 10,000 people has a rare genetic disease. There is an excellent test for the disease; 99.9% of people with the disease test positive and only 0.02% who do not have the disease test positive. a) What is the probability that ... Correct me if I am wrong?
Suppose that one person in 10,000 people has a rare genetic disease. There is an excellent test for the disease; 99.9% of people with the disease test positive and only 0...
Shubhanshu
853
views
Shubhanshu
asked
May 22, 2017
Probability
discrete-mathematics
kenneth-rosen
probability
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2
votes
1
answer
914
IIITH-PGEE 2017
Consider 3 card one having both side painted red another having both side printed black and last having one side black and another side red, 3 cards are put in a hat and are mixed properly, now one card in picked and put down on table, its face up color is red what is probability that another side will be black.
Consider 3 card one having both side painted red another having both side printed black and last having one side black and another side red, 3 cards are put in a hat and ...
Tesla!
1.4k
views
Tesla!
asked
Apr 30, 2017
Probability
iiith-pgee
probability
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2
votes
1
answer
915
Probability
Suppose that a particular trait (such as eye color or left-handedness) of a person is classified on the basis of one pair of genes, and suppose that d represents a dominant gene and r a recessive gene. Thus, a person with dd genes is pure dominance, one ... have a total of 4 children, what is the probability that 3 of the 4 children have the outward appearance of the dominant gene?
Suppose that a particular trait (such as eye color or left-handedness) of a person is classified on the basis of one pair of genes, and suppose that d represents a domina...
Arnabi
1.9k
views
Arnabi
asked
Apr 17, 2017
Probability
probability
engineering-mathematics
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1
votes
1
answer
916
Probability
in a game of bridge the entire deck of 52 cards is dealt out to 4 players.What is the probability that i)one of the players receive all 13 spades ii )each player receives one ace?
in a game of bridge the entire deck of 52 cards is dealt out to 4 players.What is the probability that i)one of the players receive all 13 spadesii )each player receives...
Arnabi
976
views
Arnabi
asked
Apr 15, 2017
Probability
probability
engineering-mathematics
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1
votes
1
answer
917
Probability
A 5-card poker hand is said to be a full house if it consists of 3 cards of the same denomination and 2 other cards of the same denomination (of course, different from the first denomination). Thus, one kind of full house is three of a kind plus a pair. What is the probability that one is dealt a full house?
A 5-card poker hand is said to be a full house if it consists of 3 cards of the same denomination and 2 other cards of the same denomination (of course, different from th...
Arnabi
1.1k
views
Arnabi
asked
Apr 15, 2017
Probability
probability
engineering-mathematics
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1
votes
2
answers
918
Probability Exercise
The chess club of two school consists of 8 and 9 players.4 member from each club are randomly chosen to participate in a competition of two school.chosen player from one team are then randomly paired against chosen players of another team.suppose Rebecca and ... and Elise will be paired 2.Rebecca and Elise will be chosen to play but they will NOT be paired against Each Other
The chess club of two school consists of 8 and 9 players.4 member from each club are randomly chosen to participate in a competition of two school.chosen player from one ...
No_name
660
views
No_name
asked
Mar 31, 2017
Probability
probability
+
–
1
votes
1
answer
919
Ravi asked his neighbor to water a delicate plant while he is away.
Ravi asked his neighbor to water a delicate plant while he is away. Without water, the plant would die with probability $4/5$ and with water, it would die with probability $3/20$ ... forgot to water the plant? (A) $4/5$ (B) $27/43$ (C) $16/43$ (D) $2/25$
Ravi asked his neighbor to water a delicate plant while he is away. Without water, the plant would die with probability $4/5$ and with water, it would die with probabilit...
.
694
views
.
asked
Mar 26, 2017
Probability
probability
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0
votes
1
answer
920
probability
If from each box of the three boxes containing $3$ white and $3$ black,$2$ white and $2$ black,$1$ white and $3$ black,one ball is drawn at random ,then the probability that $2$ white and $1$ black ball will be drawn ?
If from each box of the three boxes containing $3$ white and $3$ black,$2$ white and $2$ black,$1$ white and $3$ black,one ball is drawn at random ,then the probability t...
Shashank Kumar Mishr
635
views
Shashank Kumar Mishr
asked
Mar 16, 2017
Probability
discrete-mathematics
probability
+
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2
votes
1
answer
921
probability
There are $N$ persons sitting in a row. Two of them are selected at random.The probability that two selected persons are not together ?
There are $N$ persons sitting in a row. Two of them are selected at random.The probability that two selected persons are not together ?
Shashank Kumar Mishr
808
views
Shashank Kumar Mishr
asked
Mar 16, 2017
Probability
discrete-mathematics
probability
+
–
1
votes
2
answers
922
probability
There are four machines and it is known that exactly two of them are faulty .They are tested one by one in a random order till both the faulty machines are identified ,then the probability that only two tests are needed ?
There are four machines and it is known that exactly two of them are faulty .They are tested one by one in a random order till both the faulty machines are identified ,th...
Shashank Kumar Mishr
1.3k
views
Shashank Kumar Mishr
asked
Mar 16, 2017
Probability
discrete-mathematics
probability
+
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2
votes
1
answer
923
Discrete Probability Doubt
Consider a group of k people. Assume that each person's birthday is drawn uniformly at random from the 365 possibilities. (And ignore leap years.) What is the smallest value of ksuch that the expected number of pairs of distinct people with the same birthday is at least one?
Consider a group of k people. Assume that each person's birthday is drawn uniformly at random from the 365 possibilities. (And ignore leap years.) What is the smallest va...
Harsh181996
1.3k
views
Harsh181996
asked
Mar 13, 2017
Combinatory
discrete-mathematics
probability
+
–
1
votes
2
answers
924
ISRO 2014- probability [EE]
A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4 from the first five questions. The number of choices available to him is (A) 140 (B) 196 (C) 280 (D) 346
A student is to answer 10 out of 13 questions in an examination such that he must choose at least 4 from the first five questions. The number of choices available to him ...
sh!va
848
views
sh!va
asked
Mar 10, 2017
Probability
isro-ee
engineering-mathematics
probability
+
–
1
votes
1
answer
925
ISRO 2013- probability [EE]
Ten percent of screws produced in a certain factory turn out to be defective. Find the probability that in a sample of 10 screws chosen at random, exactly two will be defective. a) 0.2 b) 0.25 c) 0.8 d) 0.3 79.
Ten percent of screws produced in a certain factory turn out to be defective. Find the probability that in a sample of 10 screws chosen at random, exactly two will be def...
sh!va
3.9k
views
sh!va
asked
Mar 10, 2017
Probability
isro-ee
probability
+
–
0
votes
2
answers
926
ISRO 2013 Probability [EE]
An urn contains 5 black and 5 white balls. The probability of drawing two balls of the same colour a) 2/9 b) 4/9 c) 1/9 d) 5/9
An urn contains 5 black and 5 white balls. The probability of drawing two balls of the same coloura) 2/9b) 4/9c) 1/9d) 5/9
sh!va
873
views
sh!va
asked
Mar 10, 2017
Probability
isro-ee
engineering-mathematics
probability
+
–
0
votes
1
answer
927
ISRO 2013- Probability/Leap year [Mech]
Chance that a leap year selected at random will contain 53 Sundays is (a) 3/7 (b) 7/2 (c) 7/3 (d) 2/7
Chance that a leap year selected at random will contain 53 Sundays is(a) 3/7(b) 7/2(c) 7/3(d) 2/7
sh!va
755
views
sh!va
asked
Mar 8, 2017
Probability
engineering-mathematics
isro-mech
probability
+
–
0
votes
2
answers
928
ISRO 2013- Probability [Mech]
If the probability for A to fail an examination is 0.2 and that for B is 0.3, then probability that either A of B fail is (a) 0.5 (b) 0.06 (c) 0.44 (d) 0.38
If the probability for A to fail an examination is 0.2 and that for B is 0.3, then probability that either A of B fail is(a) 0.5(b) 0.06(c) 0.44(d) 0.38
sh!va
892
views
sh!va
asked
Mar 8, 2017
Probability
engineering-mathematics
isro-mech
probability
+
–
0
votes
3
answers
929
ISRO 2014- Probability [Mech]
A purse contains 4 copper coins and 3 silver coins. A second purse contains 6 copper coins and 4 silver coins. A purse is chosen randomly and a coin is taken out of it. What is the probability that it is a copper coin? a) 70/82 b) 35/70 c) 41/82 d) 41/70
A purse contains 4 copper coins and 3 silver coins. A second purse contains 6 copper coins and 4 silver coins. A purse is chosen randomly and a coin is taken out of it. W...
sh!va
1.1k
views
sh!va
asked
Mar 7, 2017
Probability
engineering-mathematics
isro-mech
probability
+
–
1
votes
1
answer
930
ISRO 2015- probability [Mech]
The probability that a teacher will give an unannounced test during any class is 1/5. If a student is absent twice, then probability that misses at least one test is (a) 24/25 (b) 16/25 (c) 7/25 (d) 9/25
The probability that a teacher will give an unannounced test during any class is 1/5. If a student is absent twice, then probability that misses at least one test is(a) 2...
sh!va
685
views
sh!va
asked
Mar 7, 2017
Probability
engineering-mathematics
isro-mech
probability
+
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