Home
Class 12
MATHS
Two numbers are selected at random(witho...

Two numbers are selected at random(without replacement) from the first five positive integers. Let X denote the larger of the two numbers obtained. Find the mean and variance of X

Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise Section D 35 B|1 Videos

Similar Questions

Explore conceptually related problems

Two numbers are selected at random (without replacement) from the first six positive integers.Let X denote the larger of the two numbers obtained.Find E(X).

Two numbers are selected at random (without replacement) from positive integers 2,3,4,5,6, and 7. Let X denote the larger of the two numbers obtained.Find the mean and variance of the probability distribution of X .

Two numbers are selected are random (without replacement) from positive integers 2,3,4,5,6 and 7. Let X denote the larger of the two numbers obtained.Find the mean and variance of the probability distribution of X.

Two numbers are selected at random (without replacement) from first six positive integers. Let X denote the larger of the two numbers obtained. Find the probability distribution of X. Find the mean and variance of this distribution.

three numbers are selected at random (without replacement) from first six positive integers.Let X denote the largest of the three numbers obtained.the probability distribution of X. Also,find the mean

Two numbers are selected at random (without replacement) from first 7 natural numbers. If X denotes the smaller of the two numbers obtained, find the probability distribution of X. Also, find mean of the distribution.

There are 4 cards numbered 1, 3, 5 and 7, one number on one card. Two cards are drawn at random without replacement. Let 'X' denote the sum of the numbers on the two drawn cards. Find the mean and variance of X.

A fair die is tossed.Let X denote twice the number appearing.Find the probability distribution,mean and variance of X .

There are 5 cards numbered 1 to 5, one number on one card.Two cards are drawn at random without replacement.Let X denote the sum of the numbers on two cards drawn. Find the mean and variance.

XII BOARDS PREVIOUS YEAR-XII Boards-All Questions
  1. Suppose a girl throws a die. If she gets 1 or 2 , she tosses a coin th...

    Text Solution

    |

  2. If A=((2,-3,5),(3,2,-4),(1,1,-2)) find A^(-1). Use it to solve the sys...

    Text Solution

    |

  3. Two numbers are selected at random(without replacement) from the first...

    Text Solution

    |

  4. Using elementary row transformations, find the inverse of the matrix A...

    Text Solution

    |

  5. Let A={x in Z:0 le x le 12}. Show that R={(a,b):a,b in A,|a-b| is divi...

    Text Solution

    |

  6. Show that the function f:R->R defined by f(x)=x/(x^2+1) AA x in R is n...

    Text Solution

    |

  7. If an operation ** on the set of integers Z is defined by a**b=2a^2+b ...

    Text Solution

    |

  8. Find the equation of the plane passing through the point <math> <mr...

    Text Solution

    |

  9. If A is a square matrix of order 2 and |A|=4, then find the value of |...

    Text Solution

    |

  10. Solve the following differential equation: x[dy]/[dx]sin(y/x)+x-ysin...

    Text Solution

    |

  11. Four cards are drawn one by one with replacement from a well-shuffled ...

    Text Solution

    |

  12. int1^5(|x-1|+|x-2|+|x-4|)\ dx

    Text Solution

    |

  13. Find the particular solution of the differential equation: (1+e^2x)dy+...

    Text Solution

    |

  14. The probability of two students A and B coming to school are 2/7 and 4...

    Text Solution

    |

  15. If y=(sinx)^x+sin^(-1)sqrt(1-x^2) then find (dy)/(dx)

    Text Solution

    |

  16. If x,y,z are different and Delta=|[x,x^2,x^3-1],[y,y^2,y^3-1],[z,z^2,z...

    Text Solution

    |

  17. Find the value of (x-y) from the matrix equation 2[(x,5),(7,y-3)]+[(-...

    Text Solution

    |

  18. int cos2x*cos4x*cos6x dx

    Text Solution

    |

  19. Solve the following differential equation: (y+3x^2)(dx)/(dy)=x

    Text Solution

    |

  20. Prove that sin^(-1)(4/5)+tan^(-1)(5/12)+cos^(-1)(63/65)=pi/2

    Text Solution

    |