Home
Class 11
MATHS
A box contains 24 identical balls of whi...

A box contains 24 identical balls of which 12 are white and 12 are black. The balls are drawn at random from the box one at a time with rplacement. The probability that a white ball is drawn for the 4th time on the 7th draw is

A

`5//64`

B

`27//32`

C

`5//32`

D

`1//2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • DISCRETE PROBABILITY DISTRIBUTIONS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Section II - Assertion Reason Type|1 Videos

  • DETERMINANTS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|30 Videos

  • FUNCTIONS

    OBJECTIVE RD SHARMA ENGLISH|Exercise Chapter Test|29 Videos

Similar Questions

Explore conceptually related problems

A box contains 20 identical balls of which 5 are white and 15 black. The balls are drawn at random from the box one at a time with replacement. The probability that a white ball is drawn for the 3rd time on the 6th draw is- a. 1/2 b. 135/2048 c. 135/1024 d. 27/4096

A box contains 20 identical balls of which 10 balls are red . The balls are drawn at random from the box oone at a time with replacement .The probability that a white ball is drawn for the 4th time on the 7th draw is

A box contains 3 orange balls, 3 green balls and 2 blue balls. Three balls are drawn at random from the box without replacement. The probability of drawing 2 green balls an one blue ball is

A box contains 3 orange balls, 3 green balls and 2 blue balls. Three balls are drawn at random from the box without replacement. Find the probability of drawing 2 green balls and one blue ball.

A box contains 3 orange balls , 3 green balls and 2 blue balls . Three balls are drawn at random form the box without replacement .The probability of drawing 2 green balls and one blue ball is

There are 12 white and 12 red ball in a bag. Balls are drawn one by one with replacement from the bag. The probability that 7th drawn ball is 4th white, is

A box contains 10 white, 6 red and 10 black balls. A ball is drawn at random from the box. What is the probability that the ball drawn is either white or red?

A bag contains 4 red, 6 black and 5 white balls, A ball is drawn at random from the bag. Find the probability that the ball drawn is: white

A bag contains 2 white and 4 black balls . A ball is drawn 5 times with replacement .The probability that atleast 4 of the balls drawn are white is

A box contains 4 red and 8 white balls . If 4 balls are drawn one by one with replacement then the probability of getting 3 white balls is

OBJECTIVE RD SHARMA ENGLISH-DISCRETE PROBABILITY DISTRIBUTIONS-Exercise
  1. about to only mathematics

    Text Solution

    |

  2. Two players toss 4 coins each. The probability that they both obtain t...

    Text Solution

    |

  3. A box contains 24 identical balls of which 12 are white and 12 are bla...

    Text Solution

    |

  4. Two dice are tossed 6 times. Then the probability that 7 will show an ...

    Text Solution

    |

  5. If X follows a binomial distribution with parameters n=6 and p. If 4P(...

    Text Solution

    |

  6. The number of times a die must be tossed to obtain a 6 at least one wi...

    Text Solution

    |

  7. Seven chits are numbered 1 to 7. Four chits are drawn one by one with ...

    Text Solution

    |

  8. If the mean of a binomial distribution is 25, then its standard deviat...

    Text Solution

    |

  9. The value of C for which P(X=k)=Ck^2 can serve as the probability func...

    Text Solution

    |

  10. In order to get a head at least once with probability >=0.9,the minimu...

    Text Solution

    |

  11. The probability that a man will hit a target in shooting practise is 0...

    Text Solution

    |

  12. If A and B each toss three coins. The probability that both get the sa...

    Text Solution

    |

  13. In a box containing 100 bulbs, 10 bulbs are defective. Probability th...

    Text Solution

    |

  14. The box contains tickets numbered from 1 to 20. Three tickets are draw...

    Text Solution

    |

  15. An unbiased coin is tossed is tossed a fixed number of times. If the p...

    Text Solution

    |

  16. A coin is tossed n times. The probability that head will turn up an od...

    Text Solution

    |

  17. Two coins are tossed five times. The probability that an odd number of...

    Text Solution

    |

  18. A six-faced dice is so biased that it is twice as likely to show an ev...

    Text Solution

    |

  19. A fair coin is tossed n times. if the probability that head occurs 6 t...

    Text Solution

    |

  20. An unbiased coin is tossed n times. Let X denote the number of times h...

    Text Solution

    |