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On her vacations Veena visits four citie...

On her vacations Veena visits four cities(A, B, C and D) in random order. What is the probability that she visits
(i) A before B? (ii) A before B and B before C?
(iii) A fist and B last? (iv) A either first or second? (v) A just before B?

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The correct Answer is:
(i) `(1)/(2)` (ii) `(1)/(6)`, students are advised to find probability in case or (iii), (iv) and (v)
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KUMAR PRAKASHAN-PROBABILITY-Textbook Illustrations for Practice Work
  1. Two coins (a one rupee coin and a two rupee coin) are tossed once. Fin...

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

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  3. In each of the following experiments specify appropriate sample space ...

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  4. In each of the following experiments specify appropriate sample space ...

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

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  6. Consider the experiment in which a coin is tossed repeatedly until a h...

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  7. Consider the experiment of rolling a die. Let A be the event 'getting ...

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  8. Two dice are thrown and the sum of the numbers which come up on the di...

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  9. A coin is tossed three times, consider the following events. A : 'No...

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  10. Let a sample space be S={omega(1),omega(2),.........,omega(6)}. Which ...

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  11. One card is drawn from a well shuffled deck of 52 cards. If each outco...

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  12. A bag contains 9 discs of which 4 are red, 3 are blue and 2 are yellow...

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  13. Two students Anil and Ashima appeared in an examination. The probabili...

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  14. A committee of two persons is selected from two men and two women. Wha...

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  15. On her vacations Veena visits four cities(A, B, C and D) in random or...

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  16. Find the probability that when a hand of 7 cards is drawn from well sh...

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  17. If A, B C are three events associated with a random experiment, prove ...

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  18. In a relay race there are five teams A, B, C, D and E. (a) What is t...

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  19. In a relay race there are five teams A, B, C, D and E. (b) What is t...

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