Home
Class 12
MATHS
A probability distribution of a variable...

A probability distribution of a variable `X` is given below: `X :01234` `P(X):0. 10. 250. 30. 20. 15` Find (i) `V a r(X)` (ii) `V a r(X/2)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • MAXIMA AND MINIMA

    RD SHARMA ENGLISH|Exercise All Questions|309 Videos

  • MEAN VALUE THEOREMS

    RD SHARMA ENGLISH|Exercise All Questions|134 Videos

Similar Questions

Explore conceptually related problems

The probability distribution of a discreate random variable X is given below : The value of k is

The probability distribution of a discrate random variable X is given below : Then E(X) is equal to

The probability distribution of a discrete random variable X is given below The value of k is

Consider the probability distribution of a random variable X. Variance of X

Consider the probability distribution of a random variable X. V ((X)/(2))

The probability distribution function of a random variable X is given by x_i :012 p_i :3c^34c-10 c^25c-1 Where c >0 . Find : (i) c (ii) P(X<2) (iii) P(1 <_X<=2) .

The probability distribution of a random variable X is given below. Find k, mean and variance of X

The probability distribution of a random variable X is given as under: Find k , and P (X lt 6) .

is the probability distribution of a random variable X. Find the variance of X.

is the probability distribution of a random variable X. Find the variance of X.

RD SHARMA ENGLISH-MEAN AND VARIANCE OF A RANDOM VARIABLE -All Questions
  1. Four balls are to be drawn without replacement from a box containing 8...

    Text Solution

    |

  2. An urn contains 4 white and 3 red balls. Find the probability distr...

    Text Solution

    |

  3. A probability distribution of a variable X is given below: X :01234 P(...

    Text Solution

    |

  4. A random variable X as the following probability distribution: xi :-2-...

    Text Solution

    |

  5. Let X be a discrete random variable whose probability distribution is ...

    Text Solution

    |

  6. The probability distribution of a discrete random variable X is given ...

    Text Solution

    |

  7. Two cards are drawn successively with replacement from a well-shuffled...

    Text Solution

    |

  8. The probability distribution of a random variable X is given as under:...

    Text Solution

    |

  9. In a game 3 coins are tossed. A person is paid Rs. 5, if he gets all h...

    Text Solution

    |

  10. A discrete random variable X has the probability distribution given be...

    Text Solution

    |

  11. There are 5 cards numbered 1 to 5, one number on one card. Two cards ...

    Text Solution

    |

  12. A box contains 13 bulbs out of which 5 are defective. 3 bulbs are r...

    Text Solution

    |

  13. Two cards are drawn without replacement from a well-shuffled deck of 5...

    Text Solution

    |

  14. Find the probability distribution of the number of green balls drawn ...

    Text Solution

    |

  15. Find dy/dx if x^2=tany

    Text Solution

    |

  16. We take 8 identical slips of paper, write the number 0 on one of them,...

    Text Solution

    |

  17. A die is loaded in such a way that an even number is twice likely to ...

    Text Solution

    |

  18. Two baised dice are thrown together. For the first die P(6)=1/2 , othe...

    Text Solution

    |

  19. The probability distribution function of a random variable X is given ...

    Text Solution

    |

  20. Two cards are drawn successively without replacement from a well sh...

    Text Solution

    |