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A coin is biased so that the head is 3 t...

A coin is biased so that the head is 3 times as likely to occur as tail. If the coin is tossed twice, find the probability distribution of number of tails.

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PRADEEP PUBLICATION-PROBABILITY-EXERCISE
  1. A die is tossed once. Let a random variable X be defined as X={(0,if t...

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  2. From a lot of 30 bulbs which include 6 defectives, a sample of 4 bulbs...

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  3. A coin is biased so that the head is 3 times as likely to occur as tai...

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  4. Two bad eggs are mixed accidently with 10 good ones. Find the probabil...

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  5. Find the variance of the distribution:

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  6. Consider the probability distribution of a random variable X: Compute...

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  7. Consider the probability distribution of a random variable X: Compute...

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  8. Two probability distribution of the discrete random variables X and Y ...

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  9. The probability distribution of a random variable X is given below: f...

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  10. The probability distribution of a random variable X is given below: C...

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  11. The probability distribution of a random variable X is given below: D...

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  12. The probability distribution of a random variable X is given below: C...

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  13. The random variable X can take the values 0,1,2 only. Give that P(X=0)...

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  14. Two biased dice are thrown together. For the first dice P(6)=1/2, the ...

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  15. A pair of dice is rolled twice. Let X denote the number of times, 'a t...

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  16. Let X be a discrete random variable whose probability distribution is ...

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  17. Let X be a discrete random variable whose probability distribution is ...

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  18. Let X be a discrete random variable whose probability distribution is ...

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  19. The probability distribution of a random variable X is given as under:...

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  20. The probability distribution of a random variable X is given as under:...

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