Home
Class 12
MATHS
The probability distribution of a discr...

The probability distribution of a discrete random variable x is given by

The value `6E(X^(2))-Var(x)` is

A

`6/58`

B

`58/6`

C

`113/12`

D

2

Text Solution

Verified by Experts

The correct Answer is:
c
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY DISTRIBUTIONS

    PREMIERS PUBLISHERS|Exercise EXERCISE 11.6|20 Videos
  • ORDINARY DIFFERENTIAL EQUATIONS

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE (ANSWER THE FOLLOWING QUESTIONS )|22 Videos
  • THEORY OF EQUATIONS

    PREMIERS PUBLISHERS|Exercise Problems for practice (Answer the following)|21 Videos

Similar Questions

Explore conceptually related problems

The probability distribution of a random variable X is given as Then the value of p is

The probability distribution of a randoin variable X is given below i. Find k. ii. Find the variance of the random variable

The probability function of a random variable is defined as Then E(X) is equal to

The following is a probability density function of a random variable X given by Find (i) The value of k

If X is a discrete random variable P(X gta) is equal to

The probability distribution of a random variable X taking values 1, 2, 3, 4, 5 is given a. find the value of p . b. Find the mean of X c. Find the variance of X

The distribution function F(x) of a random variable X is ……….

Probability distribution of the random variable X is given in the table i. Find x_(i)p_(i) i=0, 1,2,3,4 ii. Find the mean of X.

The cumculative distribution function of a discrete random variable is given by F(x)={{:(0, -infty lt x lt -1), (0.15, -1 le x lt 0), (0.35, 0 le x lt 1), (0.60, 1 le x lt 2), (0.85, 2 le x lt 3), (1, 3 le x lt infty):} Find (i) the probability mass function (ii) P(X lt 1) and (iii) P(X ge 2) .

PREMIERS PUBLISHERS-PROBABILITY DISTRIBUTIONS-PROBLEMS FOR PRACTICE
  1. In 12 throw of a die getting 2 or 4 is considered as success then the...

    Text Solution

    |

  2. Given E(X)=10, Var(X)=25 where X is a random variable and Y=aX-b is a...

    Text Solution

    |

  3. The probability distribution of a discrete random variable x is given...

    Text Solution

    |

  4. If mean =0 standard deviation =2 Then E(X^(2)) is

    Text Solution

    |

  5. IfF(x)=(A)/(pi)=(1)/(16+x^(2))-inftyltxltinfty is a pdf of a continous...

    Text Solution

    |

  6. In a binomial distribution with mean 4 and variance 16/5 then p is

    Text Solution

    |

  7. Given E(X+C)=8 and E(X-C)=12 The value of C is

    Text Solution

    |

  8. Var(5x-2)=?if Var(X)=1

    Text Solution

    |

  9. If f(x)=k(2x-x^(2)),0lexle1 is probability density function of a conti...

    Text Solution

    |

  10. In 16 throws of a die getting an even number is called a success then ...

    Text Solution

    |

  11. X is a random variable taking the values 3,4 and 12 with probabilites ...

    Text Solution

    |

  12. If X is a discrete random variable which takes the values which takes ...

    Text Solution

    |

  13. Variance =20 and E(X^(2)) =276 for discrete random variable then the m...

    Text Solution

    |

  14. A random variable X has the following probability distribution ...

    Text Solution

    |

  15. A bag contain 6 white and 4 red balls if 3 balls are drawn at random t...

    Text Solution

    |

  16. 2 cards are drawn from a well shuffled of 52 cards the probability tha...

    Text Solution

    |

  17. In 6 trails x is binomial variate which follows 4P(X=4)=P(X=2) then th...

    Text Solution

    |

  18. The probability function of a random variable is defined as Then...

    Text Solution

    |

  19. If f(x)=1/9x^(2)0lexlta is a probability density function of random va...

    Text Solution

    |

  20. If the function f(x)=1/10 for a lt x lt b represent a probability den...

    Text Solution

    |