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Find the probability distribution of num...

Find the probability distribution of number of doublets in three throws of a pair of dice.

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KUMAR PRAKASHAN-PROBABILITY-Textbook Illustrations for Practice Work
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  2. In a factory which manufactures bolts, machines A, B and C manufacture...

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  3. A doctor is to visit a patient. From the past experience, it is known ...

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  4. A man is known to speak truth 3 out of 4 times. He throws a die and r...

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  5. A person plays a game of tossing a coin thrice. For each head, he is ...

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  6. A bag contains 2 white and 1 red balls. One ball is drawn at random an...

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  7. Two cards are drawn successively with replacement from a well-shuffled...

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

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  9. Let X denote the number of hours you study during a randomly selected...

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  10. Let a pair of dice be thrown and the random variable X be the sum of t...

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  11. Find the variance of the number obtained on a throw of an unbiased die...

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  12. Two cards are drawn simultaneously (or successively without replacemen...

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  13. Six balls are drawn successively from an urn containing 7 red and 9 bl...

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  14. If a fair coin is tossed 10 times, find the probability of (i) exac...

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  15. Ten eggs are drawn successively with replacement from a lot containing...

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  16. Coloured balls are distributed in four boxes as shown in the following...

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  17. Find the mean of the Binomial distribution B(4, (1)/(3))

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  18. The probability of a shooter hitting a target is (3)/(4). How many min...

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  19. A and B throw a die alternatively till one of them gets a '6' and wins...

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  20. If a machine is correctly set up, it produces 90% acceptable items. If...

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