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A pair of dice is thrown 5 times. If get...

A pair of dice is thrown 5 times. If getting a doublet is considered a success, find the probability of 2 success.

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RD SHARMA ENGLISH-BINOMIAL DISTRIBUTION -All Questions
  1. How many times must a man toss a fair coin so that the probability of ...

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  2. How many times must a man toss a fair coin so that the probability o...

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  3. A pair of dice is thrown 5 times. If getting a doublet is considered a...

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

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  5. Find the expectation of the number of heads in 15 tosses of a coin.

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  6. Can the mean of a binomial distribution be less than its variance?

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  7. Determine the binomial distribution whose mean is 9 and variance 6.

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  8. If the mean and variance of a binomial distribution are respectively 9...

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  9. If the sum of the mean and variance of a binomial distribution for 5 ...

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  10. Determine the binomial distribution whose mean is 20 and variance 16.

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  11. The mean of a binomial distribution is 20, and the standard deviation ...

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  12. If the probability of defective bolts is 0.1, find the mean and standa...

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  13. If on an average 9 ships out of 10 arrive safely to ports, find the me...

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  14. In eight throws of a die 5 or 6 is considered a success, find the mean...

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  15. Find the expected number of boys in a family with 8 children, assuming...

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  16. A die is thrown thrice. A success is 1 or 6 in a throw. Find the mean ...

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  17. A pair of dice is thrown 4 times. If getting a doublet is considere...

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  18. From a lot of 15 bulbs which include 5 defectives, a sample of 2 bulbs...

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  19. Three cards are drawn successively with replacement from a well shu...

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  20. In a binomial distribution, if n=20 ,\ q=0. 75 ,then write its mean.

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