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A group consists of 12 persons, of wh...

A group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person from the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is (i) extremely patient (ii) extremely kind or honest. Which of the above you prefer more.

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A group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person from the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is (i) extremely patient (ii) extremely kind or honest. Which of the above values you prefer

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RD SHARMA-PROBABILITY -All Questions
  1. A number is selected at random from first 50 natural numbers. Find ...

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  2. A box contains cards numbered 3, 5, 7, 9, ....., 35, 37. A card ...

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  3. A group consists of 12 persons, of which 3 are extremely patient...

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  4. Cards numbered 1 to 30 are put in a bag. A card is drawn at random ...

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  5. A dice is rolled twice. Find the probability that 5 will not com...

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  6. All the black face cards are removed from a pack of 52 cards. The r...

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  7. Cards numbered from 11 to 60 are kept in a box. If a card is drawn ...

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  8. A bag contains cards numbered from 1 to 49.  A card is drawn fro...

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  9. All kings and queens are removed from a pack of 52 cards. The remai...

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  10. Red queens and black jacks are removed from a pack of 52 playing ca...

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  11. In a bag contains 20 cards numbered from 1 to 20. A card is drawn a...

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  12. In a bag there are 44 identical cards with figure of circle or squa...

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  13. In a musical chair game, the person playing the music has been advi...

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  14. A missing helicopter is reported to have crashed somewhere in the r...

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  15. In the Fig. 13.12, J K L M is a square with sides of length 6 units...

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  16. Suppose you drop a tie at random on the rectangular region shown in...

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  17. Cards each marked with one of the numbers 4, 5, 6, ......, 20 ar...

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  18. One card is drawn from a well shuffled deck of 52 playing cards. Wh...

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  19. A bag contains 5 red, 8 green and 7 white balls. One ball is drawn ...

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  20. A die it thrown once. What is the probability of getting a prime nu...

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