Home
Class 12
MATHS
Answer the following questions : (Altern...

Answer the following questions : (Alternatives are to be noted): A Continuous random variable x has a density function given by `f(x) = 1/2 - ax,` `0lexle4=0` else where Find (i) The constant a (ii) `p(2x+3>5).`

Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTION PAPERS SET-05

    UNITED BOOK HOUSE|Exercise Exercise|15 Videos
  • MODEL QUESTION PAPERS SET-07

    UNITED BOOK HOUSE|Exercise Exercise|19 Videos

Similar Questions

Explore conceptually related problems

Answer the following questions (Alternatives are to be noted): For a random variable X, show that [E (x^2)]^(1/2) ge E(x) .

Answer the following questions (Alternatives are to be noted) : If X be a continuous random variable with p.d.f. f(x) = k, ale xleb 0, otherwise Find E(x)

Answer the following questions (Alternatives are to be noted): If x is continuous random variable with p. d. f. {(1/2 - ax, ""0 le x le 4),(0,""otherwise):} where a is a constant, then find the value of a.

Answer the following questions (Alternatives are to be noted): If a random variable X follows binomial distribution with mean = 2 and E(x^2) = 28/5 then find P(x != 0)

Answer the following questions (Alternatives are to be noted): If a random variable X follows binomial distribution with mean = 2 and E(x^2) = 28/5 , find P(x != 0).

Answer the following questions : (Alternatives are to be noted): If r_(xy) = 0.8 , find r_(uv) where u = x+5 , v = 3 - y .

Answer the following questions (Alternatives are to be noted): If x and y are both are negative random variables, mutually independent, E(xy) = 6 and |E(x)| = 2 , find E(Y) .

Answer the following questions: Let X be a continuous random variable where f(x) = kx (3 – x), 0 le x le 3 : Then obtain k.

Answer the following questions (Alternatives are to be noted) : Let X - P(lambda) and 2P (X = 0) = P (X = 1) . Find P(x ge 1) .

Answer the following questions (Alternatives are to be noted): If the relation between two variables x and y is y = 2x + 3 , find the correlation coefficient between x and y.

UNITED BOOK HOUSE-MODEL QUESTION PAPERS SET-06-Exercise
  1. Answer the following questions : (Alternatives are to be noted): If T1...

    Text Solution

    |

  2. Answer the following questions : (Alternatives are to be noted): Defin...

    Text Solution

    |

  3. Answer the following questions (Alternatives are to be noted): prove t...

    Text Solution

    |

  4. Answer the following questions (Alternatives are to be noted): Disting...

    Text Solution

    |

  5. Answer the following questions : (Alternatives are to be noted): A Con...

    Text Solution

    |

  6. Answer the following questions : (Alternatives are to be noted): Defin...

    Text Solution

    |

  7. Answer the following questions : (Alternatives are to be noted): Defin...

    Text Solution

    |

  8. Answer the following questions : (Alternatives are to be noted): Deriv...

    Text Solution

    |

  9. Write down the correct option: If Cov (x, y) = 6 then Cov (x, y + 4) =...

    Text Solution

    |

  10. Write down the correct option: Binomial distribution B(n, p) Is positi...

    Text Solution

    |

  11. Write down the correct option: For a poisson distribution with paramet...

    Text Solution

    |

  12. Write down the correct option: If two regression lines coincides r(xy)...

    Text Solution

    |

  13. Write down the correct option: Núll hypothesis is always about-

    Text Solution

    |

  14. Write down the correct option: If E(x) = 3, E{x(x-1)} = 22. Then var (...

    Text Solution

    |

  15. Write down the correct option: sqrt(E(x)^2) ? E(x), Where? is ---

    Text Solution

    |

  16. Write down the correct option: The second order Central monient of a N...

    Text Solution

    |

  17. Answer all questions: The C.V of poisson distribution is 25% fund its ...

    Text Solution

    |

  18. Answer all questions: Which method would you adopt to forecast trend v...

    Text Solution

    |

  19. Answer all questions: State the name of control chart for attribute.

    Text Solution

    |

  20. Answer all questions: Give an example of discrete random variable.

    Text Solution

    |