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Recent questions tagged p42

A tells lie is 30% cases, and B in 35% cases find the probability that both state same fact.

asked Feb 5, 2013 by meena.p

0 answers

Find the probability that sum of nos. appearing and showing on two dice is 8, given that atleast one of the dice doesn't show 5.

asked Feb 5, 2013 by meena.p

0 answers

Suppose that a fair dice are tossed and let X represents "The sum of points". FInd the mean/ variance of X.

asked Feb 5, 2013 by meena.p

0 answers

A man is known to speak truth 3 times out of 4. He throws a dice and reports that it is a six. Find the probability that it is actually a six.

asked Feb 5, 2013 by meena.p

0 answers

A,B,C tosses a coin in turns. The first one to throw a 'head' wins game. What are their respective chances of winning.

asked Feb 5, 2013 by meena.p

0 answers

Obtain the probability distribution of number of sixes in two tosses of a dice. Also find mean/ variance.

asked Feb 5, 2013 by meena.p

1 answer

A company produces 10% defective items. Find the probability of getting 2 defective items in a sample of 8 items is

asked Feb 5, 2013 by meena.p

0 answers

A coin is tossed 7 times. FInd the probability distribution of getting r heads.

asked Feb 5, 2013 by meena.p

0 answers

If three distinct numbers are chosen at randomly from first 100 natural nos. then the probability that all of them are divisible by 2 or 3 is

asked Feb 5, 2013 by meena.p

0 answers

A fair die is rolled. The probability that the first 1 occurs at even number of trails is?

asked Feb 5, 2013 by meena.p

0 answers

A letter is chosen at random from the word ASSASSINATION. Find the probability that the letter is a vowel.

asked Feb 5, 2013 by meena.p

0 answers

If a 4 digit number > 5000 are randomly formed from digits 0,1,3,5,7. Find probability of forming a number divisible by 5 when (1) digits are repeated 2) digits are not repeated.

asked Feb 5, 2013 by meena.p

0 answers

A fair die is rolled. The probability that the first 1 occurs at the even number of trails is ?

asked Feb 5, 2013 by meena.p

0 answers

A pack of 52 cards were distributed equally among 4 players. Find the chance that 4 kings are held by particular player.

asked Feb 5, 2013 by meena.p

0 answers

What are the odds in favour of getting a 3 in a throw of die? What are the odds against getting 3?

asked Feb 5, 2013 by meena.p

0 answers

Shreya visits the cities A, B, C and D at random. What is the probability that he visits 1) A before B 2) A just before B.

asked Feb 5, 2013 by meena.p

0 answers

Solve the following $\tan^{-1} \sqrt{3} -sec^{-1} (-2)$:

asked Nov 28, 2012 by vaishali.a

2 answers

If $ \sin^{-1} x=y$ then:

asked Nov 28, 2012 by vaishali.a

1 answer

Find the value of the following:\[cos^{-1} \frac {1} {2} +2 sin^{-1}\frac {1} {2} \]

asked Nov 28, 2012 by vaishali.a

2 answers

Find the value of the following: \[ tan^{-1} (1) \;+ \; cos^{-1} \frac {-1} {2} + sin^{-1} \frac {-1} {2} \]

asked Nov 28, 2012 by vaishali.a

2 answers

Find the principal values of the following: <br> $ \mathrm{cosec}^{-1} (-\sqrt 2) $

asked Nov 28, 2012 by vaishali.a

2 answers

Find the principal value of the following: $cos^{-1} \bigg( -\frac {1} {\sqrt 2} \bigg) $

asked Nov 28, 2012 by vaishali.a

2 answers

Find the principal values of the following : $\cot^{-1} (\sqrt 3) $

asked Nov 28, 2012 by vaishali.a

2 answers

Find the principal values of the following: $sec^{-1} \bigg( \frac {2} {\sqrt 3} \bigg) $

asked Nov 28, 2012 by vaishali.a

2 answers

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