Home
Class 12
MATHS
Five bad oranges are accidently mixed wi...

Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement, then find the probability distribution of number of bad oranges drawn. Hence find the mean and variance of the distribution.

Promotional Banner

Topper's Solved these Questions

  • CUET MOCK TEST 2022

    XII BOARDS PREVIOUS YEAR|Exercise Question|49 Videos

Similar Questions

Explore conceptually related problems

An urn contains 3 white and 6 red balls.Four balls are drawn one by one with replacement from the urn.Find the probability distribution of the number of red balls drawn.Also find mean and variance of the distribution.

Find the probability distribution of the number of doubles in 4 throws of a pair of dice.Also find the mean and variance of this distribution.

Three cards are drawn successively with replacement from a well shuffled pack of 52 cards.Find the probability distribute of the number of spades.Hence,find the mean of the distribution.

two cards are drawn successively with replacement from a pack of 52 cards.Find the probability distribution of the number of diamonds and the mean of the distribution.

Find the probability distribution of the number of loublets in four throws of a pair of dice. Also find the mean and variance of this distribution.

15.Three cards are drawn successively with replacement from a well-shuffled pack of 52 cards.Find the probability distribution of the number of spades.Also,find the mean of the distribution.

Two cards are drawn successively with replacement from a well shuffled pack of 52 cards.Find the probability distribution of number of jacks.

Two cards are drawn successively with replacement from a well shuffled pack of 52 cards.Find the probability distribution of the number of aces.

Two cards are drawn successively with replacement from a well-shuffled deck of 52 cards.Find the probability distribution of the number of aces.

Five defective bolts are accidently mixed with twenty good ones.If four bolts are drawn at random from this lot,find the probability distribution of the number of defective bolts.

XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
  1. There are two types of fertilisers ‘A’ and ‘B’. ‘A’ consists of 12% ...

    Text Solution

    |

  2. Solve the equation of x:sin^(-1)x+sin^(-1)(1-x)=cos^(-1)x

    Text Solution

    |

  3. Five bad oranges are accidently mixed with 20 good ones. If four or...

    Text Solution

    |

  4. Use elementary column operation C2->C2+2C1 in the following matrix equ...

    Text Solution

    |

  5. Write the number of all possible matrices of order 2xx2 with each ent...

    Text Solution

    |

  6. If x in N and |[x+3,-2],[-3x,2x]|=8, then find the value of x

    Text Solution

    |

  7. Find the vector equation of the plane with intercepts 3,-4 and 2 on x ...

    Text Solution

    |

  8. Find the coordinates of the point where the line through the points A(...

    Text Solution

    |

  9. Find the position vector of a point which divides the join of points w...

    Text Solution

    |

  10. Write the number of vectors of unit length perpendicular to both the ...

    Text Solution

    |

  11. The two adjacent sides of a parallelogram are 2 hat i-4 hat j-5 hat k ...

    Text Solution

    |

  12. Show that the binary operation * on A=R-{-1} defined as a*b=a+b+a b fo...

    Text Solution

    |

  13. Using integration find the area of the region "{"x , y")":x^2+y^2lt=2a...

    Text Solution

    |

  14. An urn contains 3 white and 6 red balls. Four balls are drawn one by o...

    Text Solution

    |

  15. Find the coordinate of the point P where the line through A(3,4,5) and...

    Text Solution

    |

  16. Let f: N -> S be a function defined as f(x)=9x^2+6x-5. Show that f:N -...

    Text Solution

    |

  17. A manufacturer produces two products A and B. Both the products are ...

    Text Solution

    |

  18. If x=asin2t(1+cos2t) and y=bcos2t(1-cos2t), find the values of (dy)/(d...

    Text Solution

    |

  19. Find the position vector of a point which divides the join of points w...

    Text Solution

    |

  20. Matrix A=[0 2b-2 3 1 3 3a3-1] is given to be symmetric, find values of...

    Text Solution

    |