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A die is thrown three times, if the firs...

A die is thrown three times, if the first throw is a four, find the chance of getting 15 as the sum.

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RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. A pair of dice thrown. If the two numbers appearing on them are dif...

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  2. A and B are two events such that P(A)!=0. Find P(B|A) , if (i) A is a...

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  3. A die is thrown three times, if the first throw is a four, find the ...

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  4. Two integers are selected at random from integers 1 through 11. If the...

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  5. Find the probability of drawing a diamond card in each of the two co...

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  6. A bag contains 10 white and 15 black balls. Two balls are drawn in ...

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  7. A bag contains 19 tickets, numbered from 1 to19. A ticket is drawn and...

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  8. A bag contains 5 white, 7 red and 8 black balls. If four balls are d...

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  9. Bag A contains 4 red and 5 black balls and bag B contains 3 red and 7 ...

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  10. A bag contains 5 red marbles and 3 black marbles. Three marbles are ...

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  11. Two cards are drawn from a well shuffled pack of 52 cards without r...

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  12. Two cards are drawn without replacement from a well shuffled pack of 5...

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  13. A bag contains 5 white and 3 black balls. Four balls are successively ...

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  14. Cards are numbered 1 to 25. Two cards are drawn one after the other. ...

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  15. Two dice are thrown together and the total score is noted. The event E...

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  16. Find the minimum value of f(x)=pi^2/(16 cot^-1 (-x)) - cot^-1 x

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  17. A bag contains 4 white and 2 black balls. Another contains 3 white and...

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  18. A box contains 3 red and 5 blue balls. Two balls are drawn one by one ...

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  19. Twelve balls are distributed among three boxes, find the probability ...

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  20. Two numbers b\ a n d\ c are chosen at random with replacement from the...

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