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A class consists of 10 boys and 8 girls....

A class consists of 10 boys and 8 girls. Three students are selected at random. Find the probability that the selected group has : all Boys.

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MODERN PUBLICATION-PROBABILITY -EXERCISE
  1. A class consists of 10 boys and 8 girls. Three students are selected a...

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  2. Write the sample space of the following Random experiment : A coin i...

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  3. Describe the sample space for the indicated experiment, A coin is ...

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  4. Describe the sample space for the indicated experiment in the followin...

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  5. Describe the sample space for the indicated experiment in the followin...

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  6. Describe the sample space for the indicated experiment in the followin...

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  7. Describe the sample space for the indicated experiment in the followin...

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  8. Describe the sample space for the indicated experiment in the followin...

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  9. Describe the sample space for the indicated experiment in the followin...

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  10. Describe the sample space for the indicated experiment in the followin...

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  11. 2 boys and 2 girls are in room X, and 1 boy and 3 girls in room Y. Spe...

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  12. A box contains 1 red and 3 identical white balls. Two balls are drawn ...

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  13. An experiment consists of tossing a coin and then throwing it second t...

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  14. A coin is tossed. If it shows a head, we draw a ball from a bag consis...

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  15. One die of red colour, one white and one of blue are placed in a bag. ...

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  16. An experiment consists of rolling a die and then tossing a coin once, ...

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  17. Suppose 3 bulbs are selected at random from a lot. Each bulb is tested...

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  18. A coin is tossed. If the outcome is a head, a die is thrown. If the di...

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  19. A coin is tossed. If it shows tail, we draw a ball from a box which co...

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  20. Find the sample space associated with the experiment of rolling a pair...

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  21. A coin is tossed once. Write its sample space. Find the total number o...

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