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There a 9 red and 5 black balls in a bag...

There a 9 red and 5 black balls in a bag. A black ball is drawn at random. Find its probability.

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NAGEEN PRAKASHAN-PROBABILITY-EXERCISE
  1. A card is drawn from a sell shuffled pack of 52 cards. Find the probab...

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  2. There are 20 tickets numbered 1 to 20. A ticket is drawn. Find the pro...

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  3. There a 9 red and 5 black balls in a bag. A black ball is drawn at ran...

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  4. There are 5 red, 4 black and 3 blue balls in bag. A ball is drawn at r...

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  5. There are 4 white and 6 black balls in a bag. Two balls are drawn at r...

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  6. There are 5 black and 6 red balls in a bag. If 3 balls are drawn at ra...

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  7. The odds in favour of occurrence of an event are 2:5. Find the probab...

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  8. The odds in favour of the occurrence of an event are 3:5. Find the pro...

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  9. The odds against of the occurrence of an event are 4:5 . Find the prob...

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  10. The odds against of the occurrence of an event are 6:7. Find the proba...

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  11. In a class of 50 students, 20 are boys and rest are girls. A student ...

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  12. The probability of the occurrence of an event is 3/10. Find the probab...

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  13. The probability of the non-occurrence of an event is 2/7. Find the pro...

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  14. In a horse race, the probability that horse A can win is 2/5 and the p...

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  15. The probabilities that three children can win a race are 1/3,1/4 and 1...

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  16. The odds in favour for three horses participating in a house-race are ...

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  17. In two independent events the probability of happening one event is 2...

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  18. Find the probability of getting tail each time in three tosses of a co...

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  19. Find the probability of getting 3 each time in three throws a dice.

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  20. Find the probability of getting at least one head in three throws of a...

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