Home
Class 11
MATHS
The p.m.f. of a r.v. is P(X=x)={{:((1)...

The p.m.f. of a r.v. is
`P(X=x)={{:((1)/(2^(5))""^(5)C_(x)","x=0","1","...","5),(0", otherwise"):},"then"`

A

`altb`

B

`agt`

C

a=b

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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)={{:((2x)/(n(n+1))","x=1","2","...","n),(0", otherwise"):} , then Var (X) =

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

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

If the p.m.f of a d.r.v. X is P(X=x) = {{:((x)/(n(n+1))", for","x = 0,1,2,3,...,n"),(" 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.m.f. of a r.v. X is P(x)={{:((3-x)/(10)","x=-1","0","1","2),(0", otherwise"):} then E (X) =

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

If P(X=x)={{:((x^(2))/(5)","x=0","1","2),(0","" otherwise"):},"then"

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){{:(kx^(2)","x=1","2","3","4),(0", otherwise"):} , then Var (X) =

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

    Text Solution

    |

  2. Given the p.d.f of a continous r.v.X was f(x) = (x^(2))/(3), - 1 l...

    Text Solution

    |

  3. The p.m.f. of a r.v. is P(X=x)={{:((1)/(2^(5))""^(5)C(x)","x=0","1",...

    Text Solution

    |

  4. The p.m.f. of a r.v. X is P(x) = {((2x)/(n(n+1)), x=1","2","....","n),...

    Text Solution

    |

  5. The pdf of a curve X is f(x)={{:(k/sqrtx","0ltxlt4),(0","xle0" or "x...

    Text Solution

    |

  6. If the p.d.f of a c.r.v X is f(x) =(3+2x)/(18), 2le x le4 =0 .. Othe...

    Text Solution

    |

  7. If the p.d.f. of a r.v. X is f(x)= K.e^(- theta x), theta gt 0 , 0 l...

    Text Solution

    |

  8. If p.d.f. of a a c.r.v. X is f(x) = ae^(-ax) , x ge 0, a gt 0 = 0 ...

    Text Solution

    |

  9. The time (X) one has to wait for a bus at a downtown bus -stop has t...

    Text Solution

    |

  10. A random variable X takes the values 0,1,2,3,..., with prbability PX(=...

    Text Solution

    |

  11. A random variate X takes the values 0, 1, 2, 3 and its mean is 1.3. If...

    Text Solution

    |

  12. If in a distribution each x is replaced by corresponding value of f(x)...

    Text Solution

    |

  13. If the range ot a random vaniabie X is 0,1,2,3, at P(X=K)=((K+1)/3^k) ...

    Text Solution

    |

  14. If X follows a binomial distribution with parameters n=6 and p. If 4(P...

    Text Solution

    |

  15. Seven chits are numbered 1 to 7. Four chits are drawn one by one with ...

    Text Solution

    |

  16. An unbiased die is thrown . X dentes the number on the face of the die...

    Text Solution

    |

  17. Three numbers are chosen from 1 to 20. Find the probability that they ...

    Text Solution

    |

  18. Two cards are drawn from a well shuffled pack of 52 cards. The probabi...

    Text Solution

    |

  19. A and B are two events such that P (Acup B) = 0.5,P(AcapB) =0.3 ,P(B)=...

    Text Solution

    |

  20. Given P(A cup B)=0.6 , P(A capB)=0.2 , then probability of exactly on...

    Text Solution

    |