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A die tossed twice . Getting a number gr...

A die tossed twice . Getting a number greater than `4` is considered a success . Find the variance of the probability distribution of the number of successes .

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MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. An urn contains 4 white and 3 red balls. Let 'X' be the number of red ...

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

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  3. A die tossed twice . Getting a number greater than 4 is considered a s...

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  4. Find the probability distribution of green balls drawn when 3 balls ar...

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  5. 3 defective bulbs are mixed up with 7 good ones. 3 bulbs are drawn at ...

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

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  7. We take 8 identical slpis of paper, write the number 0 on one of them,...

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  8. From a lot of 10 bulbs which include 3 defectives, a sample of 2 bulbs...

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  9. A coin is tossed 5 times . X is the number of heads of observed . Find...

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  10. The mean of the number of heads in the two tosses of a coin is .

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  11. A random variable has the following probability distribution : Does ...

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  12. A random variable has the following probability distribution : If y...

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  13. Find the mean, variance for the following probability distribution: .

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  14. Find mu, sigmax^2 and sigmax for the following probability distributio...

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  15. Find mu, sigmax^2 and sigmax for the following probability distributio...

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  16. Find mu, sigmax^2 and sigmax for the following probability distributio...

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  17. Find mu, sigmax^2 and sigmax for the following probability distributio...

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  18. Two dice are thrown simultaneously. If X denotes the number of sixes, ...

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  19. Find the mean and variance of the number obtained on a throw of an unb...

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

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