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Let X denote the sum of the numbers obta...

Let X denote the sum of the numbers obtained when two fair dice are rolled. Find the variance and standard deviation of X.

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NAVNEET PUBLICATION - MAHARASHTRA BOARD-QUESTION BANK 2021-PROBABILITY DISTIBUTIONS
  1. Find the expected value and variance of r.v. X whose p.m.f. is given b...

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

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

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

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

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

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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: D...

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

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

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  11. 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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  12. Find the probability distribution of the number of successes in two to...

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

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

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

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

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

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  18. A player tosses two coins he wins Rs.10 if 2 heads appears , Rs. 5 if ...

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

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

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