Home
Class 12
MATHS
A biased coin with probability p, 0 lt p...

A biased coin with probability `p, 0 lt p lt 1`, of heads is tossed until a head appears for the first time. If the probability that the number of tosses required is even is `2//5`, then p is equal to

Promotional Banner

Topper's Solved these Questions

  • BINARY OPERATIONS

    RD SHARMA ENGLISH|Exercise All Questions|226 Videos

  • CONTINUITY

    RD SHARMA ENGLISH|Exercise All Questions|282 Videos

Similar Questions

Explore conceptually related problems

A biased coin with probability p, 0ltplt1 of heads is tossed until a head appears for the first time. If the probability that the number of tosses required is even is 2/5, then p equals

A biased coin with probability P,(0 lt p ,1) of heads is tossed until a head appear for the first time. If the probability that the number of tosses required is even is 2/5 then p=

A biased coin with probability p(0 lt plt 1) of falling tails is tossed until a tail appears for the first time. If the probability that tail comes in odd number of trials is (2)/(3) , then p equals

A fair coin is tossed until one of the two sides occurs twice in a row. The probability that the number of tosses required is even is

A coin is tossed until a head appears. What is the expectation of the number of tosses required ?

A coin is tossed until a head appears or the tail appears 4 times in succession. Find the probability distribution of the number of tosses.

The unbiased dice is tossed until a number greater than 4 appear. What is the probability that an even number of tosses is needed?

The unbiased dice is tossed until a number greater than 4 appear. What is the probability that an even number of tosses is needed?

Two coins are tossed five times. The probability that an odd number of heads are obtained, is

If a coin is tossed n times, then find the probability that the head appears odd number of times.

RD SHARMA ENGLISH-BINOMIAL DISTRIBUTION -All Questions
  1. A fair coin is tossed 99 times. Let X be the number of times heads occ...

    Text Solution

    |

  2. How many times must a man toss a fair coin, so that the probability...

    Text Solution

    |

  3. If the mean and variance of a binomial variable X are 2 and 1 respe...

    Text Solution

    |

  4. A biased coin with probability p, 0 lt p lt 1, of heads is tossed unti...

    Text Solution

    |

  5. about to only mathematics

    Text Solution

    |

  6. If X follows a binomial distribution with parameters n=100 and p=(1)...

    Text Solution

    |

  7. A fair die is tossed eight times,. The probability that a third six is...

    Text Solution

    |

  8. about to only mathematics

    Text Solution

    |

  9. A five-digit number is written down at random. The probability that th...

    Text Solution

    |

  10. If a fair coin is tossed 9 times, find the probability of (a) exactly ...

    Text Solution

    |

  11. IF the mean and the variance of a binomial distribution are 4 and 3 re...

    Text Solution

    |

  12. A coin is tossed 4 times . The probability of getting atleast one head...

    Text Solution

    |

  13. For a binomial variate X, if n=3\ a n d\ P(X=1)=8\ P(X=3),\ t h e n\ p...

    Text Solution

    |

  14. A coin is tossed n times. The probability of getting head atleast once...

    Text Solution

    |

  15. The probability of selecting a male or a female is same. If the probab...

    Text Solution

    |

  16. A box contains 100 pens of which 10 are defective. What is the probabi...

    Text Solution

    |

  17. Suppose a random variable X follows the binomial distribution with par...

    Text Solution

    |

  18. In the probability that a person is not a swimmer is 0.3, then the pro...

    Text Solution

    |

  19. Which one is not a requirement of a binomial distribution? a. There ar...

    Text Solution

    |

  20. What is the probability of guessing correctly at least 8 out of 10 ans...

    Text Solution

    |