Home
Class 12
MATHS
If the mean and variance of a binomial v...

If the mean and variance of a binomial variate X are `(4)/(3),(8)/(9)` respectively , then P(X = 2) =

A

`(4)/(27)`

B

`(8)/(81)`

C

`(16)/(81)`

D

`(8)/(27)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • RANDOM VARIABLE

    AAKASH SERIES|Exercise EXERCISE - II|76 Videos

  • QUADRATIC EQUATIONS & EXPRESSIONS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|88 Videos

  • RANDOM VARIABLES

    AAKASH SERIES|Exercise Exercise 4.4|9 Videos

Similar Questions

Explore conceptually related problems

If the mean and variance of a Binomial variable X are (5)/(2) and (5)/(4) respectively, then P(X gt 1)=

If the mean and variance of a binomial variate X are 8 and 4 respectively then P(X lt 3)=

If the mean and variance of a binomial variable X are 2 and 1 respectively, then P(X ge1)=

The mean and standard deviation of a binomial variate X are 4 and sqrt3 respectively. Then P(X= ge 1)=

The mean and variance of a Binomial variate are 2.4 and 1.44 respectively. Find the parameters, P(X=2) and P(1 lt X le4) .

If the mean and variance of a binomial distribution are 4 and 2 respectively , then the probability of 2 successes of that binomial variate X , is

The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is

The mean and variance of a binomial distribution are 4 and 3 respectively. Fix the distribution and find P(X ge 1) .

AAKASH SERIES-RANDOM VARIABLE -PRACTICE EXERCISE
  1. In a binomial distribution n=12, p=1//3. Then mean and variance are

    Text Solution

    |

  2. In a binomial distribution, mean is 5 and the variance is 4 . The numb...

    Text Solution

    |

  3. If the mean and variance of a binomial variate X are (4)/(3),(8)/(9) ...

    Text Solution

    |

  4. If for a binomial distribution the mean is 6 and the standdard deviati...

    Text Solution

    |

  5. A box contains 4 red and 8 white balls . If 4 balls are drawn one by o...

    Text Solution

    |

  6. Probability of happening of an event in an experiment is 0.4 . The pro...

    Text Solution

    |

  7. In a binomial distribution the mean is 12 and the standard deviation i...

    Text Solution

    |

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

    Text Solution

    |

  9. A coin is biased so that the probability of falling head when tossed i...

    Text Solution

    |

  10. If 10 coins are tossed then mean and variance of x and x denotes the n...

    Text Solution

    |

  11. A die is thrown twice. If getting a number greater than four on the di...

    Text Solution

    |

  12. Three dice are rolled 4 times . The probability of getting sum 17 exac...

    Text Solution

    |

  13. Two cards are drawn successively with replacement . The mean of number...

    Text Solution

    |

  14. The standard deviation of a poisson distribution is 4 then its mean is

    Text Solution

    |

  15. If a random variable X has a Poisson distribution such that P(X=1)=P(X...

    Text Solution

    |

  16. In a Poisson distribution P(X=0) =2P(X=1) then the standard deviation ...

    Text Solution

    |

  17. In a Poission X, If P(X=0)=0.2 then the variance of the distribution i...

    Text Solution

    |

  18. In a factory manufacturing certain spare parts 2% of the output is fou...

    Text Solution

    |

  19. The incidence of an occupation disease to the workers of a factory is ...

    Text Solution

    |

  20. If 2% of a given lot of manufactured parts are defective , then the pr...

    Text Solution

    |