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State which of the following are not the probability distributions of a random variable. Given reasons for your answer.

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MODERN PUBLICATION-PROBABILITY-NCERT-FILE (Exercise 13.4)
  1. State which of the following are not the probability distributions of ...

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

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  3. Let X represent the difference between the number of heads and the ...

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  4. Find the probability distribution of (i) number of heads in two tos...

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  5. Find the probability distribution of the number of successes in two...

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

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

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

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  9. The random variable X has a probability distribution P(X) of the fo...

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  10. Find the mean number of heads in three tosses of a fair coin.

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  11. Two dice are thrown simultaneously. If X denotes the number of sixe...

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  12. Two numbers are selected at random (without replacement) from the f...

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  13. Let X denote the sum of the numbers obtained when two fair dice are...

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  14. A class has 15 students whose ages are 14, 17, 15, 14, 21, 17, 19, ...

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  15. In a meeting, 70% of the members favour and 30% oppose a certain pr...

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  16. The mean of the numbers obtained on throwing a die having written 1 o...

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  17. Suppose that two cards are drawn at random from a deck of cards. Let ...

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