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If is known that 10% of certain articles...

If is known that 10% of certain articles manufactured are defective. What is the probability that in a random sample of 12 such articles ,9 are defective?

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PRADEEP PUBLICATION-PROBABILITY-EXERCISE
  1. Find the probability of getting 5 exactly twice in 7 throws of a die.

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  2. Find the probability of throwing at most 2 sixes in 6 throws of a sing...

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  3. If is known that 10% of certain articles manufactured are defective. W...

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  4. Binomial distribution is given this name because

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  5. Which of the following is not a case of Bernoulli's trials:

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  6. A and B are two events such that P (A) ne 0. Find P(B|A),if : A is a ...

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  7. A and B are two events such that P (A) ne 0. Find P(B|A),if : AcapB = ...

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  8. A couple has two children find the probability that both children are ...

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  9. A couple has two children, find the probability that both children are...

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  10. Suppose that 5% of men and 0.25% of women have grey hair. A grey haire...

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  11. An urn contains 25 balls of which 10 balls bear a mark 'X' and the rem...

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  12. An urn contains 25 balls of which 10 balls bear a mark 'X' and the rem...

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  13. An urn contains 25 balls of which 10 balls bear a mark 'X' and the rem...

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  14. An urn contains 25 balls of which 10 balls bear a mark 'X' and the rem...

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  15. In a hurdle race, a player has to cross 10 hurdles. The probability th...

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  16. A die is thrown again and again until three sixes are obtained. Find t...

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  17. If a leap year is selected at random, what is the chance that it will ...

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  18. An experiment succeeds twice as often as it fails. Find the probabilit...

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  19. How many times must a man toss a fair coin so that the probability of ...

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  20. In a game, a man wins a rupee for a six and loses a rupee for any othe...

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