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A bag has 10 balls. Six ball are drawn i...

A bag has 10 balls. Six ball are drawn in an attempt and replaced. Then another draw of 5 balls is made from the bag. The probability that exactly two balls are common to both the draw is `5//21` b. `2//21` c. `7//21` d. `3//21`

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A DAS GUPTA-Elementary Probability-Exercise
  1. A bag contains 6 coupons numbered 1, 2, 3, 4, 5 and 6. Five coupons ar...

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  2. Let X = { x|1 le x le 50, x in N }. A member of the set X is selected ...

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  3. A bag has 10 balls. Six ball are drawn in an attempt and replaced. The...

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  4. A question paper is split in two group - A and B. The group A contains...

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  5. A coin is tossed 5 times. What is the probability that head appears an...

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  6. A dice is thrown six times, it being known that each time a different ...

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  7. Aa n dB are two candidates seeking admission in ITT. The probabilit...

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  8. A man and a woman appear in an interview for two vacancies in the s...

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  9. A man and a woman appear in an interview for two vacancies in the s...

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  10. An ant-aircraft gun can take maximum of four shots at an enemy plane m...

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  11. An article manufactured by a company consists of two parts X and Y. In...

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  12. Two persons each make a single throw with a pair of dice. The probabil...

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  13. A coin is tossed 10 times. What is the probability of getting exactly ...

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  14. A coin is tossed 10 times. The probability of getting exactly six head...

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  15. A bag contains 8 balls of two colours, red and green. 3 balls are take...

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  16. A hunter has a chance 1/r^2 of shooting down a tiger from a distance r...

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  17. A and B throw a pair of dice alternately. A wins the game, if he gets ...

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  18. A and B throw a pair of dice alternately. A wins the game, if he gets ...

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  19. v31

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  20. A and B throw with one die for a stake of ₨11 which is to be won by th...

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