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State whether the following is not the p...

State whether the following is not the probability mass function of random variable. Give reasons for your answer.

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The correct Answer is:
P(x) cannot be regarded as p.m.f.of the random variable X.
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-QUESTION BANK 2021-PROBABILITY DISTIBUTIONS
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  2. Find mean for the following probability distribution

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  4. Find the expected value and variance of r.v. X whose p.m.f. is given b...

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  6. The probability distribution of X is as follows: Find k and P [X l...

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  7. The following probability distribution of r.v. X Find the probabil...

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  8. In the p.m.f. of r.v. X Find a

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

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

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  11. A random variable X has the following probability distribution: D...

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  12. Find the probability distribution of number of doublets m three thr...

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  13. Find the mean and variance of the number randomly selected from 1 to 1...

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  14. The p.m.f. of a r.v. X is P(x)={{:((3-x)/(10)","x=-1","0","1","2),(0",...

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

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

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  17. Two cards are drawn simultaneously (or successively without replace...

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

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

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  20. The following is the c.d.f. of r.v. X Find (i) P (-1 le X le 2) (...

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