Home
Class 12
MATHS
A r.v. X~B (n, p). If values of mean and...

A r.v. `X~B` (n, p). If values of mean and variance of X are 18 and 12 respectively, then total number of possible values of X are

A

54

B

55

C

12

D

18

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MATRICES

    NIKITA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|277 Videos
  • MHT-CET 2018

    NIKITA PUBLICATION|Exercise MCQ|50 Videos

Similar Questions

Explore conceptually related problems

At random variable X~B(n,p) if values of mean and variance of X are 18 and 12 respectively, then total number of possible values of X are

The mean and variance of 5,7,12,10,15,14,a,b are 10 and 13.5 respectively then value of |a-b|=

Mean and variance of a binomial variate X are 4 and 2 respectively Then P (X =1 )= ……

If the mean and variance of a binomial variable X are 2 and 1 respectively find P(X>1)

Let X = {x in N : 1 le x le 17 } and Y ={ax + b : x in X and a,b, in R , a > 0} . If mean and variance of elements of Y are 17 and 216 respectively then a + b is equal to

Mean and Variance of a binomial variance are 4 and 4/3 respectively then P(X>=1) will be

For X ~ B (n , p), if n = 5 and the sum of the mean and variance is 1.8, then p =

NIKITA PUBLICATION-MHT-CET 2017-MCQ
  1. In DeltaABC, if sin^(2)A+sin^(2)B=sin^(2)C and l(AB)=10, then the maxi...

    Text Solution

    |

  2. If x=f(t) and y=g(t) , then write the value of (d^2y)/(dx^2) .

    Text Solution

    |

  3. A r.v. X~B (n, p). If values of mean and variance of X are 18 and 12 r...

    Text Solution

    |

  4. The area of the reggion bounded by the lines y=2x+1,y=3x+1" and "x=4 i...

    Text Solution

    |

  5. A box contains 6 pens , 2 of which are defective Two pens are...

    Text Solution

    |

  6. If the volume of spherical ball is increasing at the rate of 4pi" cc/s...

    Text Solution

    |

  7. If f(x)=log(sec^(2)x)^(cot2) for xne0 for x=0 is continuous at x=0, th...

    Text Solution

    |

  8. If the origin and the points P(2,3,4), Q(1,2,3) and R(x,y,z) are copla...

    Text Solution

    |

  9. if lines represented by equation px^(2)-qy^(2)=0 are distinct, then

    Text Solution

    |

  10. Let square PQRS be a quadrilateral. If M and N are the mid-points of t...

    Text Solution

    |

  11. If slopes of lines represented by kx^(2)+5xy+y^(2)=0 differ by 1, then...

    Text Solution

    |

  12. If vector r wiith dc's l,m,n is equally inclined to the coordinate axe...

    Text Solution

    |

  13. The particular solution of the differential equation x dy+2y dx=0, the...

    Text Solution

    |

  14. A B C is a triangle and A=(235)dotB=(-1,3,2)a n dC=(lambda,5,mu)dot If...

    Text Solution

    |

  15. For the following distribution function F (X) of a r.v. X P(3 lt ...

    Text Solution

    |

  16. The lines (x-1)/(2)=(y+1)/(2)=(z-1)/(4)" and "(x-3)/(1)=(y-k)/(2)=(z)/...

    Text Solution

    |

  17. int(sec^(8)x)/("cosec x")dx=

    Text Solution

    |

  18. The equation of line equally inclined to coordinate axes and passing t...

    Text Solution

    |

  19. If int(0)^(pi//2) log(cosx) dx=pi/2 log (1/2), then int(0) ^(pi//2...

    Text Solution

    |

  20. A boy tosses faiir coin 3 times. If he gets Rs 2X for X heads, then hi...

    Text Solution

    |