Recent questions tagged probability

The probability that a non - leap year has 53 sundays is

asked Jan 6, 2014 by thanvigandhi_1

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The chance of throwing a total of 3 or 5 or 11 wih two dice is

asked Jan 6, 2014 by thanvigandhi_1

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A and B are two events such that $ P(A) > 0, P(B) \neq 1$ then $ P( \overline A / \overline B )=$

asked Jan 6, 2014 by thanvigandhi_1

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If $ P(A)=0.65\: P(B)=0.80$ then $ P(A \cap B)$ lies in the interval

asked Jan 6, 2014 by thanvigandhi_1

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A fair coin is tossed 100 times. The probability of getting tails on odd number of times is

asked Jan 6, 2014 by thanvigandhi_1

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A determinant is chosen at random from the set of all determinants of order 2 with elements 0 and 1 only. The probability that the determinant chosen is non-zero is

asked Jan 6, 2014 by thanvigandhi_1

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Let A,B,C be three equally likely and collectively exhaustive events. If the odds 8 : 3 against A, 5:2 against B then the odds against C are

asked Jan 6, 2014 by thanvigandhi_1

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The probability of guessing correctly atleast 8 out of 10 answers on a true - false examination is :

asked Jan 6, 2014 by thanvigandhi_1

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If $X$ follows a binomial distribution with parameters $n$ and $p$. $p \lt 0 \lt 1$ If $ P(X=r)/P(X=n-r)$ is independent of $ n \:$ and$\: r$ , then value of p is :

asked Jan 6, 2014 by thanvigandhi_1

1 answer

Two dice are thrown, the probability that the sum of the points on the dice is 7 is

asked Jan 6, 2014 by thanvigandhi_1

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A die is thrown 4 times. The probability of getting at most two 6 is :

asked Jan 4, 2014 by thanvigandhi_1

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If the chance that a ship will arrive safely at a port is $ \large\frac{9}{10}$, the chance that out of 5 ships expected to arrive at the port at least 4 will arrive safely is

asked Jan 4, 2014 by thanvigandhi_1

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A fair coin is tossed 10 times. The probability that the coin shows head exactly 4 times is

asked Jan 4, 2014 by thanvigandhi_1

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The probability that England wins a cricket match against India is $ \large\frac{1}{3}$. If India and England play 3 test matches the probability that India will win exactly 2 test matches is

asked Jan 4, 2014 by thanvigandhi_1

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If on an average 2 ships in every 10, sinks. The probability that out of 5 ships expected to arrive, at least three will arrive safely is

asked Jan 3, 2014 by thanvigandhi_1

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A,B and C take one shot each at a target. Their probability of hitting the target are respectively 0.4, 0.5 and 0.8. The probability that at least two of them hit the target is

asked Jan 3, 2014 by thanvigandhi_1

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Three identical dice are rolled. The probability that the same number will appear on each of them is

asked Jan 3, 2014 by thanvigandhi_1

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The probability of a man hitting a target is $ \large\frac{3}{4}$. He tries 5 times. The probability that the target will be hit at least 3 times is

asked Jan 3, 2014 by thanvigandhi_1

1 answer

An experiment can result in only 3 mutually exclusive events A,B and C. If $ P(A) = 2P(B) = 3P(C) $ then $P(A) =$

asked Jan 3, 2014 by thanvigandhi_1

1 answer

Three mangoes and three apples are kept in a box. If two fruits are selected at random from the box, the probability that the selection will contain one mango and one apple is

asked Jan 3, 2014 by thanvigandhi_1

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Let $A$ and $B$ be two events, such that: $ P(\overline{A \cup B} ) $$= \large\frac{1}{6}\:$,$\;\; P( A \cap B ) $$= \large\frac{1}{4} $,$\;$and $\;\;P(\overline A)$$=\large\frac{1}{4}$ where $\overline A$ stands for complement of event $A$. Then events $A$ and $B$ are

asked Jan 3, 2014 by thanvigandhi_1

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Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is :

asked Jan 3, 2014 by thanvigandhi_1

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Two persons A and B have equal number of sons. There are three cinema tickets which are to be distributed among the sons of A and B. The probability that all the tickets go to sons of A is $ \large\frac{1}{20}$. The number of sons each of them is :

asked Jan 3, 2014 by thanvigandhi_1

1 answer