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A bag contains 7 red and 4 black balls, ...

A bag contains 7 red and 4 black balls, 3 balls are drawn at random. Find the probability that
one red and 2 black.

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The correct Answer is:
`(14)/(55)`
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NCERT TAMIL-INTRODUCTION TO PROBABILITY THEORY -Exercise 12.1
  1. An experiment has the four possible mutually exclusive and exhaust...

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  2. An experiment has the four possible mutually exclusive and exhaust...

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  3. If two coins are tossed simultaneously, then find the probability of g...

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  4. If two coins are tossed simultaneously, then find the probability of g...

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  5. Five mangoes and 4 apples are in a box. If two fruits are chosen at ra...

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  6. Five mangoes and 4 apples are in a box. If two fruits are chosen at ra...

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  7. What is the chance that non-leap year

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  8. What is the chance that leap year should have fifty three S...

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  9. Eight coins are tossed once, find the probability of getting exact...

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  10. Eight coins are tossed once, find the probability of getting at leas...

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  11. Eight coins are tossed once, find the probability of getting at mos...

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  12. An integer is chosen at random from the first 100 positive integers. ...

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  13. A bag contains 7 red and 4 black balls, 3 balls are drawn at random. ...

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  14. A bag contains 7 red and 4 black balls, 3 balls are drawn at random. ...

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  15. A single card is drawn from a pack of 52 cards. What is the probabilit...

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  16. A single card is drawn from a pack of 52 cards. What is the probabilit...

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  17. A single card is drawn from a pack of 52 cards. What is the probabilit...

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  18. A cricket club has 16 members, of whom only 5 can bowl. What is the pr...

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  19. (i) The odds that the event A occurs is 5 to 7, find P(A).

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  20. (ii) Suppose P(B) =(2)/(5). Express the odds that the event B occurs.

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