Home
Class 12
MATHS
Find the mean and variance of the random...

Find the mean and variance of the random variable X whose distribution is

Text Solution

Verified by Experts

The correct Answer is:
`=(n^(2)-1)/(12)`
Promotional Banner

Topper's Solved these Questions

  • RANDOM VARIABLE

    AAKASH SERIES|Exercise EXERCISE-3.1 (LONG ANSWER QUESTIONS)|9 Videos

  • RANDOM VARIABLE

    AAKASH SERIES|Exercise EXERCISE-3.2 (VERY SHORT ANSWER QUESTIONS)|16 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 m and sigma^(2) are the mean and variance of the random variable X, whose distribution is given by: {:(X=x:,0,1,2,3),(P(X=x):,(1)/(3),(1)/(2),0,(1)/(6)):}

Find the mean and variance of the random variable X which follows the following distribution.

Find the mean and variance of the random variable X which follows the following distribution

The mean and variance of a random variable X having a binomial distribution are 4 and 2 respectively, then P(X=1) is Theoretical Distributions

The mean and variance of a random variable X having binomial distribution are 4 and 2 respectively. Then P(x gt 6)=

The variance of the random variable X having the following distribution

Compute the variance of X whose distribution is given by

A random variable X has the following distribution

AAKASH SERIES-RANDOM VARIABLE -PRACTICE EXERCISE
  1. Find the mean and variance of the random variable X whose distribution...

    Text Solution

    |

  2. A random variable X ahs the following distribution {:(x,1,2,3,4),(P...

    Text Solution

    |

  3. X is a random variable with distribution given below {:(x:,0,1,2,3),...

    Text Solution

    |

  4. Given below is the distribution of a random variable X If alpha ...

    Text Solution

    |

  5. A random variable X has the following distribution . The mean and...

    Text Solution

    |

  6. In a probability distribution of a random variable X , the sum of prob...

    Text Solution

    |

  7. A random variable X has the following distribution . The value of...

    Text Solution

    |

  8. If X is the sum of the number when two dice are rolled , then mean var...

    Text Solution

    |

  9. A random variable X has its range {0,1,2,3,………}. If P(X=r)=(c(r+1))/(2...

    Text Solution

    |

  10. If it rains a dealer in rain coats can earn Rs . 500 Rs a day . If it ...

    Text Solution

    |

  11. A box contains 6 tickets. Two of the tickets carry a price of Rs. 5//-...

    Text Solution

    |

  12. For a dealer in a consignment of umbrellas , the probabilty of getting...

    Text Solution

    |

  13. In a binomial distribution n=12, p=1//3. Then mean and variance are

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |