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A coin is tossed. If head comes up,  d...

A coin is tossed. If head comes up,  die is thrown but if tail comes up, the coin is tossed again. Find the probability of obtaining: (i) two tails (ii) head and number 6 (iii) head and an even number,

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RD SHARMA ENGLISH-PROBABILITY-All Questions
  1. Three dice are thrown together. Find the total number of samples space...

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  2. One urn contains two black balls (labelled B1 and B2) and one white ...

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  3. A coin is tossed. If head comes up,  die is thrown but if tail comes...

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  4. Two dice are thrown simultaneously: Find the probability of its occ...

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  5. Three coins are tossed once. Find the probability of getting: all head...

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  6. In a lottery of 50 tickets numbered 1 to 50, two tickets are drawn ...

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  7. Four cards are drawn at random from a pack of 52 playing cards. Find ...

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  8. A sample space consists of 9 elementary event E1, E2, E3 ..... E8, E9 ...

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  9. In a random sampling three items are selected from a lot. Each item is...

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  10. A box contains 1 white and 3 identical black balls. Two balls are draw...

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  11. An experiment consists of rolling die until a 2 appears. (i)How many ...

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  12. From a group of 2 boy and 3 girls, two children are selected at random...

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  13. From a group of 2 boys and 3 girls, two children are selected. Find th...

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

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  15. A die is thrown twice. Each time the number appearing on it is reco...

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  16. A card is picked up from a deck of 52 playing cards. What is the sampl...

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  17. In a large metropolitan area, the probabilities are 0.87,0.36,0.30 tha...

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  18. If A and B are mutually exclusive events such that P(A)=0. 35 and P(B)...

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  19. If A and B are mutually exclusive events such that P(A)=0.20 and P(B)=...

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  20. A team of medical students doing internship have to assist during surg...

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