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Find the mean and variance of Binomial D...

Find the mean and variance of Binomial Distribution if p=1/2 ,n=1

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RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. A coin is tossed three times. Find P(E//F) in each of the following: ...

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  2. A bag contains 6 red and 5 blue balls and another bag contains 5 red ...

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  3. Find the mean and variance of Binomial Distribution if p=1/2 ,n=1

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  4. One bag contains 4 white and 5 black balls. Another bag contains 6 ...

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  5. There are two bags. The first bag contains 5 white and 3 black balls ...

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  6. There are 3 red and 5 black balls in bag A; and red and 3 black balls ...

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  7. Find the probability of drawing a one-rupee coin from a purse with two...

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  8. A probability of student A passing an examination is 2/9 and of studen...

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  9. X is taking up subjects Mathematics, Physics and Chemistry in the e...

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  10. A and B throw alternately a pair of dice. A wins if he throws 6 before...

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  11. Three persons A, B, C throw a die in succession till one gets a six ...

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  12. In a bolt factory, machines A, B and C manufacture respectively 25%, ...

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  13. Two thirds of the students in a class are boys and the rest girls. It ...

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  14. An urn contains m white and n black balls. A ball is drawn at random ...

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  15. A box has 5 blue and 4 red balls. One balls is drawn at random and ...

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  16. A bag contains 3 white and 2 black balls and another bag contains 2 ...

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  17. A bag contains (2n+1) coins. It is known that n of these coins have a ...

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  18. One bag contains 4 white and 5 black balls. Another bag contains 6 ...

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  19. A factory has two machines A and B. Past records show that the machine...

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  20. A company has two plants to manufacture scooters. Plant I manufactures...

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