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A box contains 16 bulbs out of which 4 b...

A box contains 16 bulbs out of which 4 bulbs are defective. 3 bulbs are drawn one by one from the box without replacement. Find the probability that all three are defective bulbs

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A box contains 13 bulbs out of which 5 bulbs are defective. 3 bulbs are drawn one by one from the box without replacement. Find the probability that exactly 2 bulbs are defective.

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MODERN PUBLICATION-PROBABILITY-Revision Exercise
  1. E and F are two events such that P(E)ne 0. Find P(F//E), if : (i) E ...

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  2. Coloured balls are distributed in four boxes as shown in the follow...

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  3. Suppose we have four boxes A,B,C and D containing coloured marbles ...

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  4. Bag I contains 3 red and 4 black balls and Bag II contains 4 red an...

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

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  6. Assume that the chances of a patient having a heart attack is 40%. ...

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  7. If each element of a second order determinant is either zero or one, ...

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  8. An electronic assembly consists of two subsystems, say, A and B. Fr...

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  9. A box contains 16 bulbs out of which 4 bulbs are defective. 3 bulbs ar...

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  10. A box contains 13 bulbs out of which 5 bulbs are defective. 3 bulbs ar...

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  11. In a game, a man wins a rupee for a six and loses a rupee for any o...

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  12. (i) A die is thrown 7 times. If getting an "even number" is "success",...

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  13. A die is thrown 3 times. Getting a multiple of 3 is considered a succe...

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  14. Six coins are tossed simultaneously. Find the probability of getting (...

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  15. A die is thrown again and again until three sixes are obtained. Fin...

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  16. An experiment succeeds twice as often as it fails. Find the probabi...

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  17. How many times must a man toss a fair com so that the probability o...

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  18. From the frequency distribution table from the following data

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  19. A man takes a step forward with probability 0.4 and backward with prob...

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  20. Out of (2n+1) tickets consecutively numbered, three are drawn at rando...

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