Home
Class 11
MATHS
The p.m.f. of a r.v. X is P(x)={{:(kx","...

The p.m.f. of a r.v. X is `P(x)={{:(kx","x=1","2","3),(0", therwise"):}`, then k =

A

`1/2`

B

`1/3`

C

`1/4`

D

`1/5`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|239 Videos

  • QUESTION PAPER 2016

    MARVEL PUBLICATION|Exercise QUESTION|47 Videos

Similar Questions

Explore conceptually related problems

The p.m.f. of a r.v. X is P(x)={{:(2kx","x=1","2","3),(0", otherwise"):} , then k =

The p.m.f. of a r.v. X is P(x)={{:(2kx","x=1","2","3),(0", otherwise"):} , then E (X) =

The p.m.f. of a r.v. X is P(x)={{:(kx","x=1","2","3),(0", otherwise"):} , then E (X) =

The p.m.f. of a r.v. X is P(x)={{:(2kx","x=1","2","3),(0", otherwise"):} , then Var (X) =

The p.m.f. of a r.v X is P(x)={{:(kx","x=1","2","3),(0", otherwise"):} , then Var (X) =

The p.m.f. of a r.v. X is P(x){{:(kx^(2)","x=1","2","3","4),(0", otherwise"):} , then Var (X) =

The p.m.f. of a r.v. X is P(x)={{:(kx^(2)","x=1","2","3","4),(0", otherwise"):} , then E (X) =

The p.m.f. of a r.v. X is P(x)={{:((c)/(x^(3))","x=1","2","3),(0", otherwise"):},"then" E (X) =

The p.d.f. of a r.v. X is f(x)={{:(kx","0ltxlt2),(0", otherwise"):} , then k =

The p.m.f. of a r.v. X is P(x)={{:((1)/(15)","x=1","2","…","15),(0", otherwise"):} , then E (X) =

MARVEL PUBLICATION-PROBABILITY DISTRIBUTIONS-MCQs
  1. If the p.d.f. of a c.r.v. X is f(x)={(kx^2 (1-x^3)","0lexle1,),(0",...

    Text Solution

    |

  2. The p.d.f. of a c.r.v. X is f(x)={(k .sin ((pix)/5)","0lexle5,),(0","...

    Text Solution

    |

  3. The p.m.f. of a r.v. X is P(x)={{:(kx","x=1","2","3),(0", therwise"):}...

    Text Solution

    |

  4. The p.d.f. of a.c.r. X is f(x)={(1/2","0ltxlt2,),(0",",otherwise):} ...

    Text Solution

    |

  5. If the p.d.f. of a c.r.v. X is f(x)={(1/4","-1lt x lt3,),(0",",othe...

    Text Solution

    |

  6. if the p.d.f of a a.c.r.v X is f(x)={(x/8","0ltxlt4,),(0",",otherwis...

    Text Solution

    |

  7. If a curve X has probability density function (pdf) f(x)={{:(ax","0...

    Text Solution

    |

  8. The p.m.f. of a r.v. X is P(x)={{:((1)/(15)","x=1","2","…","15),(0", o...

    Text Solution

    |

  9. P.d.f. of a c.r.v X is f(x)={(6x(1-x)","0lexle1,),(0",",elsewhere):}...

    Text Solution

    |

  10. A c.r.v X has the p.d.f f(x)={(3x^2","0lexle1,),(0",",elsewhere):} I...

    Text Solution

    |

  11. The life in hours of a ratio tube is continuous random variable with p...

    Text Solution

    |

  12. The amount of bread x (in hundreds os pounds ) that a bakery sells in ...

    Text Solution

    |

  13. The p.m.f. of a r.v. X is P(x)={{:((c)/(x^(3))","x=1","2","3),(0", oth...

    Text Solution

    |

  14. The p.m.f. of a r.v. X is P(x)={{:(kx^(2)","x=1","2","3","4),(0", othe...

    Text Solution

    |

  15. A fair coin is tosed 3 times. A person receives "Rs. "X^(2) if he gets...

    Text Solution

    |

  16. The p.d.f. of X is f(x)={{:((x^(2))/(18)","-3ltxlt3),(0", otherwise")...

    Text Solution

    |

  17. The p.d.f. of X is f(x)={{:((x+2)/(18)","-2ltxlt4),(0", otherwise"):},...

    Text Solution

    |

  18. Given : f(x)={(1/(x^2)","1ltxltoo,),(0",",elsewhere):}is p.d.f. of c.r...

    Text Solution

    |

  19. The p.d.f. of a r.v. X is f(x)={{:((1)/(x^(2))","1ltxltoo),(0", otherw...

    Text Solution

    |

  20. The p.d.f of a random variable X is given by f(x) = 3(1-2x^(2)), 0 lt...

    Text Solution

    |