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A letter is known to have come either from LONDON or CLIFTON, on the postmark only the two consecutive letters ON are eligible. The probability that it come from LONDON is

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A letter is known to have come either from LONDON or CLIFTON.On the envelope just two consecutive letters ON are visible.What is the probability that the letter has come from (i) LONDON (ii) CLIFTON?

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A letter is known to have come from either "TATANAGAR" or "CALCUTTA' .On the envelope just two consecutive letters are visible. if the visible letters are TA, then the probability that the letter has come from "CALCUTTA" is (A) 4/11 (B) 1/3 (C) 5/12 (D) 1/7

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ML KHANNA-PROBABILITY-Self Assessment Test
  1. A biased die is tossed and the respective probabilities for various fa...

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  2. Three identical dice are rolled. The probability that same number appe...

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  3. A letter is known to have come either from LONDON or CLIFTON, on the p...

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  4. A card from a pack 52 cards is lost. From the remaining cards , two ca...

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  5. The probability that in the toss of two dice we obtain an even sum or ...

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  6. A determinant is chosen at random from the set of all determinants of ...

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  7. An experiment has 10 equally likely outcomes. Let A and B be two non-e...

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  8. One ticket is selected at ransom form 50 tickets numbered 00,01,02,…,4...

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  9. In a binomial distribution B(n , p=1/4) , if the probability of at lea...

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  10. Four fair dice D(1),D(2),D(2) and D(4) each having six faces numbered...

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  11. An urn contains nine balls of which three are red, four are blue and t...

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  12. Three numbers are chosen at random without replacement from {1, 2, 3, ...

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  13. A single which can can be green or red with probability 4/5 and 1/5 re...

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  14. Consider 5 independent Bernoulli.s trials each with probability of ...

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  15. Let omega be a complex cube root unity with omega!=1. A fair die is th...

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  16. Let E and F be two independent events. The probability that exactly on...

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  17. A ship is fitted with three engines E(1),E(2),and E(3) the engines fun...

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  18. If X and Y are two events such that PX//Y)=(1)/(2), P(Y//X)=(1)/(3) an...

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  19. Let U1 , and U2, be two urns such that U1, contains 3 white and 2 red ...

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  20. Given that the drawn ball from U2 is white, the probability that head ...

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