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Recent questions tagged probability

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Recent questions tagged probability

0 votes
1 answer
1
NIELIT 2019 Feb Scientist D - Section D: 14
A bag contains $12$ balls of the two different colours out of which $x$ are white. One ball is drawn at random. If $6$ more white balls are put in a bag, the probability of drawing a white ball now will be doubled to that of previous probability of drawing a white ball. The value of $x$ is : $4$ $5$ $6$ $3$
A bag contains $12$ balls of the two different colours out of which $x$ are white. One ball is drawn at random. If $6$ more white balls are put in a bag, the probability of drawing a white ball now will be doubled to that of previous probability of drawing a white ball. The value of $x$ is : $4$ $5$ $6$ $3$
asked Apr 3, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.8k points 299 views
1 vote
1 answer
2
NIELIT 2017 DEC Scientific Assistant A - Section A: 35
A college cricket team with $11$ players consists of $4$ batsman, $3$ all-rounders, $3$ bowlers and $1$ wicket keeper. $3$ players are selected randomly. Find the probability that the selection contains a batsman, a bowler and an all-rounder. $\dfrac{12}{60} \\$ $\dfrac{13}{25} \\$ $\dfrac{12}{55} \\$ $\dfrac{104}{165}$
A college cricket team with $11$ players consists of $4$ batsman, $3$ all-rounders, $3$ bowlers and $1$ wicket keeper. $3$ players are selected randomly. Find the probability that the selection contains a batsman, a bowler and an all-rounder. $\dfrac{12}{60} \\$ $\dfrac{13}{25} \\$ $\dfrac{12}{55} \\$ $\dfrac{104}{165}$
asked Mar 31, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.8k points 1.2k views
0 votes
1 answer
3
NIELIT 2017 DEC Scientific Assistant A - Section A: 44
If a fair coin is tossed $5$ times and comes up heads four times out of five. Then if the coin is tossed a sixth time under the same conditions, the probability of it turning up heads is: $80\%$ $125\%$ $50\%$ $20\%$
If a fair coin is tossed $5$ times and comes up heads four times out of five. Then if the coin is tossed a sixth time under the same conditions, the probability of it turning up heads is: $80\%$ $125\%$ $50\%$ $20\%$
asked Mar 31, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.8k points 631 views
1 vote
1 answer
4
NIELIT 2016 DEC Scientist B - Section A: 56
Two dice are thrown simultaneously. The probability of obtaining a total score of $5$ is $1/18$ $1/12$ $1/9$ None of these
Two dice are thrown simultaneously. The probability of obtaining a total score of $5$ is $1/18$ $1/12$ $1/9$ None of these
asked Mar 31, 2020 in Quantitative Aptitude Lakshman Patel RJIT 10.8k points 263 views
1 vote
2 answers
5
Interview Question
You have to play three games with opponents A and B in a specified sequence. You win the series if you win two consecutive games. A is a stronger player than B. Which sequence maximizes your chance of winning the series? AAB ABA BAB BAA All are the same.
You have to play three games with opponents A and B in a specified sequence. You win the series if you win two consecutive games. A is a stronger player than B. Which sequence maximizes your chance of winning the series? AAB ABA BAB BAA All are the same.
asked Aug 1, 2018 in Quantitative Aptitude Rishav Kumar Singh 558 points 708 views
4 votes
3 answers
6
obtaining head in coin
A coin is tossed 10 times Find the probablity of obtaining head at least once
A coin is tossed 10 times Find the probablity of obtaining head at least once
asked Dec 24, 2017 in Quantitative Aptitude Uma Maheswari 286 points 626 views
2 votes
0 answers
7
Ten tickets numbered 1, 2, 3, ..., 10. Six tickets are selected at random one of a time with replacement.
Ten tickets numbered $1, 2, 3, ..., 10.$ Six tickets are selected at random one at a time with replacement. The probability of the largest number appearing on the selected ticket being 7 is a. $(7^6 +1)/10^6$ b. $(7^6 - 6^6)/10^6$ c. $(7^6+6^6)/10^6$ d. $6^6/10^6$
asked Oct 2, 2017 in Quantitative Aptitude flash 26 points 1.8k views
1 vote
1 answer
8
tcs aptitude
There are two bags. One bag contains 4 white and 2 black balls. Second bad contains 5 white and 4 black balls. 2 balls are transferred from first bag to second bag. Then one ball is taken from the second bag. The probability that the ball is white is ? 42/33 5/16 48/13 19/33
There are two bags. One bag contains 4 white and 2 black balls. Second bad contains 5 white and 4 black balls. 2 balls are transferred from first bag to second bag. Then one ball is taken from the second bag. The probability that the ball is white is ? 42/33 5/16 48/13 19/33
asked Sep 15, 2016 in Quantitative Aptitude __ 498 points 1.2k views
1 vote
2 answers
9
probability
When 4 dice are thrown, what is the probability that the same number appears on each of them? a. 1/36 b. 1/18 c. 1/216 d. 1/5
When 4 dice are thrown, what is the probability that the same number appears on each of them? a. 1/36 b. 1/18 c. 1/216 d. 1/5
asked Sep 7, 2016 in Quantitative Aptitude __ 498 points 498 views
0 votes
1 answer
10
CAT 2014 | Question: 35
A box contains $6$ red balls, $7$ green balls and $5$ blue balls. Each ball is of a different size. The probability that the red ball selected is the smallest red ball, is $1/18$ $1/3$ $1/6$ $2/3$
A box contains $6$ red balls, $7$ green balls and $5$ blue balls. Each ball is of a different size. The probability that the red ball selected is the smallest red ball, is $1/18$ $1/3$ $1/6$ $2/3$
asked Jan 16, 2016 in Quantitative Aptitude makhdoom ghaya 7.9k points 314 views
0 votes
1 answer
11
CAT 2009 | Question: 20
$\text{A}$ and $\text{B}$ throw with one dice for a stake of $\text{Rs.}\;11$ which is to be won by the player who first throw $6$. If $\text{A}$ has the first throw, what are their respective expectations. $\text{Rs.}\; 7, \text{Rs.}\; 4$ $\text{Rs.}\; 6, \text{Rs.}\; 5$ $\text{Rs.}\; 4, \text{Rs.}\; 7$ $\text{Rs.}\; 5, \text{Rs.}\; 6$
$\text{A}$ and $\text{B}$ throw with one dice for a stake of $\text{Rs.}\;11$ which is to be won by the player who first throw $6$. If $\text{A}$ has the first throw, what are their respective expectations. $\text{Rs.}\; 7, \text{Rs.}\; 4$ $\text{Rs.}\; 6, \text{Rs.}\; 5$ $\text{Rs.}\; 4, \text{Rs.}\; 7$ $\text{Rs.}\; 5, \text{Rs.}\; 6$
asked Jan 1, 2016 in Quantitative Aptitude makhdoom ghaya 7.9k points 388 views
4 votes
1 answer
12
It is known that a bus will arrive at random at a certain location sometime between 3:00 P.M. and 3:30 P.M.
It is known that a bus will arrive at random at a certain location sometime between 3:00 P.M. and 3:30 P.M. A man decides that he will go at random to this location between these two times and will wait at most 5 minutes for the bus. If he misses it, he will take the subway. What is the probability that he will take the subway?
asked Jul 14, 2015 in Quantitative Aptitude Arjun 8.3k points 2.0k views
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