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Recent questions tagged probability

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2 answers
843
Probability
From a gift pack of 5 items, 3 items are drawn, found that all of them are in red color. What is the probability that all are red?
From a gift pack of 5 items, 3 items are drawn, found that all of them are in red color. What is the probability that all are red?
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3 votes
1 answer
844
online examination
if 8 coins are tossed then find the probability that no two heads appear consecutively??
if 8 coins are tossed then find the probability that no two heads appear consecutively??
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0 votes
0 answers
848
Continous_Probability
Consider the two independent random variable X and Y having probability density functions uniform in the interval [0,1] The probability that X+Y>1.5 : $a)\frac{1}{4}$ $b)\frac{1}{2}$ $c)\frac{1}{3}$ $d)\frac{3}{8}$ $e)None \ of \ these$
Consider the two independent random variable X and Y having probability density functions uniform in the interval [0,1] The probability that X+Y>1.5 :$a)\frac{1}{4}$ ...
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1 votes
1 answer
853
probability
a dice is tossed seven times what is the probability that all six faces appear at least once? a)63/64 b)35/648 c)2/9 d)5/324
a dice is tossed seven times what is the probability that all six faces appear at least once?a)63/64b)35/648c)2/9d)5/324
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0 votes
1 answer
854
MadeEasy Test Series 2017: Probability - Conditional Probability
Hi Guys, I think final answer of following question should be 0.47. Please correct me if i am wrong.
Hi Guys,I think final answer of following question should be 0.47. Please correct me if i am wrong.
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2 votes
1 answer
855
probability
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1 votes
0 answers
856
Probability of processor time utilization
A process spends 25% of the time waiting for the I/O to complete. If there are 3 processes in the memory at a time, then the probability of CPU time utilized is ____________________
A process spends 25% of the time waiting for the I/O to complete. If there are 3 processes in the memory at a time, then the probability of CPU time utilized is _________...
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1 votes
1 answer
858
Previous Gate
The second moment of a Poisson-distributed random variable is 2. The mean of the variable is .... My question on solving we get 2 values of lamda(ie mean) .One is -2 and the other is 1 .So which one to choose?
The second moment of a Poisson-distributed random variable is 2. The mean of the variable is ....My question on solving we get 2 values of lamda(ie mean) .One is -2 and t...
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2 votes
0 answers
861
#PROBABILITY
Is there any relation between independent events and mutually exclusive events?
Is there any relation between independent events and mutually exclusive events?
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1 votes
0 answers
862
Normal Distribution
Can any one say how to solve Z score questions like below 1) P(1≤Z≤30) = ? 2) P(z>2.5)=? 3) P(z<=k) = 0.9 find k? Will they give any related values of Z-scores in exam ?
Can any one say how to solve Z score questions like below1) P(1≤Z≤30) = ?2) P(z>2.5)=?3) P(z<=k) = 0.9 find k?Will they give any related values of Z-scores in exam ?
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4 votes
2 answers
863
probability
Consider a coin with probability P to be heads. What is the probability that the first head will appear on the even numbered tosses? (A) (1 - P) / 2 (B) (1 - P) / (2 - P) (C) (1 - P) / (3 - P) (D) 1 / (P (1 - P))
Consider a coin with probability P to be heads. What is the probability that the first head will appear on the even numbered tosses?(A) (1 - P) / 2(B) (1 - P) / (2 - P)(C...
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1 votes
0 answers
864
Range of covariance and correlation coefficient
Hi Guys, How can we prove following $\rightarrow$ $-\infty \leq Covariance(X,Y) \leq +\infty$ and $ -1 \leq correlationCoefficient(X,Y) \leq +1$
Hi Guys,How can we prove following $\rightarrow$$-\infty \leq Covariance(X,Y) \leq +\infty$and $ -1 \leq correlationCoefficient(X,Y) \leq +1$
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0 votes
1 answer
866
PROBABILITY
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0 votes
1 answer
867
Gate 2012 CE Probability
The annual precipitation data of a city is normally distributed with mean and standard deviation as $1000$ $mm$ and $200$ $mm$, respectively. The probability that the annual precipitation will be more than $1200$ $mm$ is $<50\%$ $50\%$ $75\%$ $100\%$
The annual precipitation data of a city is normally distributed with mean and standard deviation as $1000$ $mm$ and $200$ $mm$, respectively. The probability that the ann...
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1 votes
1 answer
868
Probability
Suppose two dies are rolled .What is the probability of getting 4 on the first die , when the the sum is 6 ? A) 1/5 B)1/6
Suppose two dies are rolled .What is the probability of getting 4 on the first die , when the the sum is 6 ?A) 1/5 B)1/6
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1 votes
2 answers
869
probability
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3 votes
1 answer
870
Probability
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