Home
Class 12
MATHS
Fifteen coupens are numbered 1, 2, 3,......

Fifteen coupens are numbered `1, 2, 3,... 15` respectively. Seven coupons are selected at random one at a time with replacement The Probability that the largest number appearing on a selected coupon is 9 is :

A

`(1/15)^(7)`

B

`(3/5)^(7)`

C

`(8/15)^(7)`

D

`(2/5)^(7)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • JEE MOCK TEST 18

    NTA MOCK TESTS|Exercise MATHEMATICS|25 Videos
  • JEE MOCK TEST 20

    NTA MOCK TESTS|Exercise MATHEMATICS|25 Videos

Similar Questions

Explore conceptually related problems

Fifteen coupons are numbered 1, 2, 3,…, 15 respectively. Seven coupons are selected random one at a time with replacement. The probability that the largest number appearing on the selected coupons is atmost 9, is :

Seven chits are numbered 1 to 7. Four chits are drawn one by one with replacment.The probability that the least number appearing on any selected chit is 5 is :

Three numbers are selected at random one by one with replacement from the numbers 1,2,3,….60. The probability that the A.M. of the numbers selected is 15 is.

Twenty coupons are numbered 1,2,3......,20 respectively.Four coupons are selected at random without replacement.If maximum and minimum numbers on selected coupons are 12 and 3 respectively.Then the probability that the maximum number on the remaining selected coupons is 9 is (1)(5)/(56) (2) (5)/(28) (3) (15)/(28) (4) (8)/(56)

Three numbers are selected from the set {1,2,3,...,23,24}, without replacement.The probability that the selected numbers form an A.P.is equal to

NTA MOCK TESTS-JEE MOCK TEST 2-MATHEMATICS
  1. The lines represented by the equation x^2 + 2sqrt(3)xy + 3y^(2) -3x...

    Text Solution

    |

  2. At present, a firm is manufacturing 2000 items. It is estimated that t...

    Text Solution

    |

  3. Let f: R to R be a periodic function such that f(T+x)=1" " where T...

    Text Solution

    |

  4. AB is vertical tower. The point A is on the ground and C is the middle...

    Text Solution

    |

  5. If f(x)={{:(x + 1, x gt 1),(0",", x=1 " then f '(0) equal to "),(7-3x"...

    Text Solution

    |

  6. If x = -1 and x = 2 are extreme points of f(x) = alpha log|x| + beta x...

    Text Solution

    |

  7. If x takes negative permissible value then sin^(-1)x=

    Text Solution

    |

  8. If f(x)=Pi(k=1)^(999)(x^(2)-47x+k). then product of all real roots of ...

    Text Solution

    |

  9. In a certain town 25% families own a cellphone, 15% families own a sco...

    Text Solution

    |

  10. The number of ways of arranging 8 men and 5 women around a circular ta...

    Text Solution

    |

  11. Let A=[(-1,2,-3),(-2,0,3),(3,-3,1)] be a matrix, then |A|adj(A^(-1)) i...

    Text Solution

    |

  12. If the equation x^(2)+4+3sin(ax+b)-2x=0 has at least one real solution...

    Text Solution

    |

  13. Fifteen coupens are numbered 1, 2, 3,... 15 respectively. Seven coupon...

    Text Solution

    |

  14. For x in R, x != 0 if y(x) is a differentiable function such that x in...

    Text Solution

    |

  15. If O is the origin and OP, OQ are distinct tangents to the circle x^(2...

    Text Solution

    |

  16. The inradius of the triangle having sides 26,28,30 units is

    Text Solution

    |

  17. Let the sum sum(n=1)^(9)1/(n(n+1)(n+2)) written in the rational form b...

    Text Solution

    |

  18. In a DeltaABC if /A=/B=1/2(sin^(-1)((sqrt(6)+1)/(2sqrt(3)))+sin^(-1)(...

    Text Solution

    |

  19. lim(xto0)(sin^(-1)x-tan^(-1)x)/(x^(3)) is equal to

    Text Solution

    |

  20. A farmer F1 has a land in the shape of a triangle with vertices at P(0...

    Text Solution

    |