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In a purse there are 10 coins, all shill...

In a purse there are 10 coins, all shillings except one, which is a sovereign in another purse, there are 10 coins, all shilings. Nine coins are taken from the former purse and put into the latter, and then nine coins are taken from the latter and put into the former. find the chance that the sovereign is still in the first purse.

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PRADEEP PUBLICATION-PROBABILITY-EXERCISE
  1. In a purse there are 10 coins, all shillings except one, which is a so...

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  2. A dice is rolled twice in succession. Find the probability of a number...

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  3. There are two independent events E1 and E2 and P(E1)=0.30, P(E2)=0.60 ...

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  4. There are two independent events E1 and E2 and P(E1)=0.30, P(E2)=0.60 ...

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  5. There are two independent events E1 and E2 and P(E1)=0.30, P(E2)=0.60 ...

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  6. There are two independent events E1 and E2 and P(E1)=0.30, P(E2)=0.60 ...

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  7. Let E1 and E2 be two independent events such that P(E1)=rho1 and P(E2)...

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  8. Let E1 and E2 be two independent events such that P(E1)=rho1 and P(E2)...

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  9. Let E1 and E2 be two independent events such that P(E1)=rho1 and P(E2)...

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  10. Let E1 and E2 be two independent events such that P(E1)=rho1 and P(E2)...

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  11. A bag contains 5 red, 7 green and 4 white balls. Three balls are drawn...

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  12. A bag contains 5 red, 7 green and 4 white balls. Three balls are drawn...

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

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  14. If A and B are two independent events such that P(AuuB)=0.6 and P(A)=0...

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  15. If A and B are two independent events such that P(AcupB)=0.5, P(B)=0.2...

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  16. Two dice are thrown together and the total score is noted. The events ...

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  17. Three events A, B and C have probabilities 2/5,1/3 and 1/2, respectiv...

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  18. A coin is tossed successively three times. Determine the probability o...

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  19. Three coins are tossed once. Find the probability of getting at least ...

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  20. Three coins are tossed. Find the probability of : atmost two heads

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  21. A coin and a dice are thrown. What is the probability of getting "a he...

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