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An urn contains 5 red and 2 black balls....

An urn contains 5 red and 2 black balls. Two balls are randomly drawn. Let X represent the number of black balls. What are the possible values of X? Is X a random variable ?

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MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. Coloured balls are distributed in three bags as shown in the following...

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  2. Three bags contain balls as shown in the table below: A bag is chose...

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  3. An urn contains 5 red and 2 black balls. Two balls are randomly drawn....

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  4. Let X represent the difference between the number of heads and the num...

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  5. A random variable 'X' has the following probability distribution: Fi...

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  6. A random variable 'X' has the following probability distribution: Fi...

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  7. A random variable 'X' has the following probability distribution: Fi...

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  8. A random variable has the following probability distribution : Find ...

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  9. A random variable has the following probability distribution : Obtai...

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  10. An unbiased coin is thrown thrice. If the random variable X denotes th...

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  11. Find the probability distribution of the number of tails when two coin...

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  12. Find the probability distribution of the number of tails when two coin...

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  13. A coin is tossed 5 times . X is the number of heads of observed . Find...

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  14. Find the Probability distribution of the number of heads when three co...

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  15. Find the probability distribution of the number of tails when three co...

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  16. Find the probability distribution of number of heads in four tosses of...

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  17. Find the Probability distribution of the number of heads when three co...

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  18. Find the probability distribution of the number of sixex in two tosses...

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  19. Find the probability distribution of number of doublets in three throw...

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  20. Find the probability distribution of the number of successes in two to...

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