A bag contains 4 balls. Two balls are dr...

A bag contains 4 balls. Two balls are drawn at random and are found to be white. What is the probability that all balls are white?

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MODERN PUBLICATION-PROBABILITY-EXERCISE

A doctor is to visit a patient. From the past experience, it is known ...
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A man is known to speak the truth 3 out of 4 times. He throws a die an...
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A bag contains 4 balls. Two balls are drawn at random and are found to...
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Of the students in a college, it is known that 60% reside in hostel an...
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A laboratory blood test is 99% effective in detecting a certain diseas...
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Suppose a girl throws a die. If she gets a 5 or 6, she tosses a coin t...
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There see three coins,one is a two headed coin (having head on both th...
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In a cer tain college, 4% of boys and 1% of girls are taller than 1.75...
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Coloured balls are distributed in three bags as shown in the following...
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Three bags contain balls as shown in the table below: A bag is chose...
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An urn contains 5 red and 2 black balls. Two balls are randomly drawn....
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Let X represent the difference between the number of heads and the num...
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A random variable 'X' has the following probability distribution: Fi...
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A random variable 'X' has the following probability distribution: Fi...
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A random variable 'X' has the following probability distribution: Fi...
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A random variable has the following probability distribution : Find ...
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A random variable has the following probability distribution : Obtai...
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An unbiased coin is thrown thrice. If the random variable X denotes th...
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Find the probability distribution of the number of tails when two coin...
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Find the probability distribution of the number of tails when two coin...
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