Home
Class 12
MATHS
A fair coin is tossed a fixed number tim...

A fair coin is tossed a fixed number times . If the probability of getting seven heads is equal to that of getting nine heads then the probability of getting two heads is

A

`15//2^(8)`

B

`2//15`

C

`15//2^(13)`

D

`4//15`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • THEORETICAL DISTRIBUTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1.2.3 OR 4 GIVEN (SET -1)|4 Videos
  • THEORETICAL DISTRIBUTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1.2.3 OR 4 GIVEN (SET -2)|3 Videos
  • THEORETICAL DISTRIBUTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVES 1.2.3 OR 4 GIVEN (SET -4)|5 Videos
  • THE PLANE

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SPECIAL TYPE QUESTIONS) SET 4|4 Videos
  • THEORY OF EQUATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise SET - 4|4 Videos

Similar Questions

Explore conceptually related problems

A fair coin is tossed a fixed number of times. If the probability of getting five heads is equal to that of getting seven heads, then the probability of getting four heads is

When a coin is tossed n times, if the probability for getting 6 heads is equal to the probability of getting 8 heads, then the value of n is

When a coin is tossed n times if the probability for getting 6 heads is equal to the probability for getting 8 heads then find the value of n.

If a coin is tossed three times, the probability of getting three heads.

When a coin is tossed, the probability of getting a head is………….

A coin is tossed 20 times. Find the probability of getting atleast 12 consecutive heads.

When a coin is tossed the probability of getting a tail or head is…….

DIPTI PUBLICATION ( AP EAMET)-THEORETICAL DISTRIBUTIONS-EXERCISE 1 (CHOOSE THE CORRECT ANSWER FROM THE ALTERNATIVE 1,2,3 OR 4 GIVEN )
  1. A man takes a step forward with probability 0.4 and backward with prob...

    Text Solution

    |

  2. In an average , rain falls on 12 days in every 30 days. The probabilit...

    Text Solution

    |

  3. A fair coin is tossed a fixed number times . If the probability of get...

    Text Solution

    |

  4. If X follows a binomial distribution with parameters n=8 and p=1//2, t...

    Text Solution

    |

  5. A die is thrown 2n+1 times. The probability of getting 1 or 4 atmost n...

    Text Solution

    |

  6. Out of 10,000 families with 4 children each , the probability number o...

    Text Solution

    |

  7. Out of 2560 families with 5 children each, the probability number of f...

    Text Solution

    |

  8. Five coins are tossed 3200 times. The number of times getting exactly ...

    Text Solution

    |

  9. 12 coins are tossed 4096 times. The number of times that one can get a...

    Text Solution

    |

  10. Six dice are thrown 729 times. The number of times you expect atleast ...

    Text Solution

    |

  11. 100 sets of 10 tossed of a perfect coin are taken . In how many sets ...

    Text Solution

    |

  12. The mean of a Poisson distribution is 2.25. The standard deviation is

    Text Solution

    |

  13. If the standerd deviation of a Poisson distribution is 2, then the par...

    Text Solution

    |

  14. If a random variable X has a Poisson distribution with parameter 1//2...

    Text Solution

    |

  15. If a random variable X has a Poisson distribution with parameter 2, th...

    Text Solution

    |

  16. A random variable X has Poisson distribution with mean 2. Then P(X gt ...

    Text Solution

    |

  17. If X is a Poisson variate such that P(X=0)=P(X=1), then the parameter ...

    Text Solution

    |

  18. In a Poisson distribution if P(X=0)=P(X=1)=k, the value of k is

    Text Solution

    |

  19. If X is a Poisson variable with P(X=0)=P(X=1) then P(X=2)=

    Text Solution

    |

  20. If X is a Poisson distribution such that P(X=0)=P(X=1), then P(X=3)=

    Text Solution

    |