Home
Class 12
MATHS
Find the probability distribution of num...

Find the probability distribution of number of doublets in four throws of a pair of dice. Find also the mean and the variance of the number of doublets.

Text Solution

Verified by Experts

The correct Answer is:
`(##ARH_CHSE_ODI_13Y_SP_MAT_XII_VST_07_E01_020_A01##)`
`"Mean"=2/(3)and"Variance"=5/(9)`
Promotional Banner

Topper's Solved these Questions

  • VERY SIMILAR TEST 7

    ARIHANT PRAKASHAN|Exercise Section C (30 MARKS)|32 Videos
  • VERY SIMILAR TEST 7

    ARIHANT PRAKASHAN|Exercise Section C (30 MARKS)|32 Videos
  • VERY SIMILAR TEST 6

    ARIHANT PRAKASHAN|Exercise SECTION C ANSWER ANY ONE QUESTIONS|11 Videos
  • VERY SIMILAR TEST 8

    ARIHANT PRAKASHAN|Exercise Section C|25 Videos

Similar Questions

Explore conceptually related problems

Find the probability distribution of number of doublets in three tosses of a pair of dice.

Find the probability distribution of number of heads in three tosses of a coin.

Find the probability distribution of number of heads in simultaneous tosses of four coins.

ARIHANT PRAKASHAN-VERY SIMILAR TEST 7-Section B (60 MARKS)
  1. Show that the following systems of linear equations is consistent and ...

    Text Solution

    |

  2. If A+B+C = pi, prove that [[sin^2A,cotA,1],[sin^2B,cotB,1],[sin^2C,c...

    Text Solution

    |

  3. Find the probability distribution of number of doublets in four throws...

    Text Solution

    |

  4. Find the equasion of the tangents drawn from the point (1,2) to the cu...

    Text Solution

    |

  5. Find the intervals in which the function y="sin"x,x in[0, 2pi] is in...

    Text Solution

    |

  6. If y =(sin^(-1) x)^2, prove that (1-x^2)y2 - xy1 - 2 = 0

    Text Solution

    |

  7. Differentiate "log"(10)x+"log"(x)10+"log"(x)x+"log"(10)10.

    Text Solution

    |

  8. Verify the LMVT for the function f(x)=(1)/(4x-1),1lexle4.

    Text Solution

    |

  9. Find the solution of the differential equation. (x-y-2)dx+(x-2y-3)dy...

    Text Solution

    |

  10. Find the differential equation by eleminating the orbitary constants i...

    Text Solution

    |

  11. Evaluate the following integrals : int(e^(6logx)-e^(5logx))/(e^(4log...

    Text Solution

    |

  12. Prove that int(-1)^(1)log((2-x)/(2+x))dx=0

    Text Solution

    |

  13. Find the area enclosed bt the two paraboles y^2=4 ax and x^2=4ay.

    Text Solution

    |

  14. By computing shortest distance, determine whether the following pair o...

    Text Solution

    |

  15. Find the equation of the plane Paralel to the plane 2x-y+3z+1=0 and at...

    Text Solution

    |

  16. If vec(a), vec(b) and vec(c) are three mutually perpendicular vectors...

    Text Solution

    |

  17. If vec(a),vec(b)" and "vec(c) are three vectors, such that vec(a)+vec(...

    Text Solution

    |

  18. If hat(a), hat(b), hat(c) are unit vectors and hat(a) xx (hat(b) xx ha...

    Text Solution

    |

  19. Evaluate "tan"("sin"^(-1)3/(5)+"cot"^(-1)3/(2)).

    Text Solution

    |

  20. One kind of cake requires 200 g of flour and 25 g of fat and another k...

    Text Solution

    |