Home
Class 12
MATHS
A box has 100 pens of which 10 are defec...

A box has 100 pens of which 10 are defective. The probability that out of a sample of 5 pens drawn one by one with replacement and atmost one is defective is

A

`(9)/(10)`

B

`(1)/(2)((9)/(10))^(4)`

C

`((9)/(10))^(5)+(1)/(2)((9)/(10))^(4)`

D

`(1)/(2)((9)/(10))^(5)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2015

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

  • KARNATAKA CET 2018

    KCET PREVIOUS YEAR PAPERS|Exercise MATHEMATICS|60 Videos

Similar Questions

Explore conceptually related problems

Choose the correct answer: In a box containing 100 bulbs, 10 are defective. The probability that out of a sample of 5 bulbs, none is defective is

A box contains 100 bulbs, out of which 10 are defective. A sample of 5 bubls is drawn. The probability that none is defective is

A box contains 100 bulbs, out of which 10 are defective. A sample of 5 bulbs is drawn. The probability that none is defective is

A box contains 144 pens of which 20 are defective and the others are good. A person will buy a pen if it is good and will not buy if it is defective. The shopkeeper draws one pen from the box at random and gives it to the person. What is the probability that the person (a) will buy it? (b) will not buy it?

A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good, but will not buy if it is defective . The shopkeeper drawn one pen at random and gives it to her. What is the probability that She will buy it?

A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good, but will not buy if it is defective . The shopkeeper drawn one pen at random and gives it to her. What is the probability that She will not buy it ?

A lot consists of 144 ball pens of which 20 are defective and the others are good. Nuri will buy a pen if it is good, but will not buy if it is defective. The shopkeeper draws one pen at random and gives it to her. What is the probability that: (i) she will buy it? (ii) she will not buy it?

There are 5% defective items in a large bulk of items. What is the probability that a sample of 10 items will include not more than one defective item?

From a lot of 30 bulbs which include 6 defectives, a sample of 4 bulbs is drawn at random with replacement. Find the probability distribution of the number of defective bulbs.

From a lot of 30 bulbs which include 6 detective, a sample of 4 balls is drawn at random with replacement. Find the probability distribution of the number of defective bulbs.

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2017-MATHEMATICS
  1. If 2[[1,3],[0,x]]+ [[y,0],[1,2]]= [[5,6],[1,8]] , then the value of x...

    Text Solution

    |

  2. The derivative of cos^(-1)(2x^(2) - 1) w.r.t cos^(-1) x is

    Text Solution

    |

  3. A box has 100 pens of which 10 are defective. The probability that out...

    Text Solution

    |

  4. If y = log (log x), then (d^(2)y)/(dx^(2)) is equal to

    Text Solution

    |

  5. int ((x+3)e^(x))/((x+4)^(2)) dx is equal to

    Text Solution

    |

  6. int(0)^(pi//2)(dx)/(a^(2)cos^(2)x + b^(2) sin^(2) x) =

    Text Solution

    |

  7. Let f: R to R be defined by f(x) = x^(4), then

    Text Solution

    |

  8. The point on the curve y^(2) = x where the tangent makes an angle (pi)...

    Text Solution

    |

  9. The total number of terms in the expansion of (x + a)^(47) - (x - a)^(...

    Text Solution

    |

  10. The function f(x) = x^(2) + 2x - 5 is strictly increasing in the inter...

    Text Solution

    |

  11. The degree of the differential equation [1+ ((dy)/(dx))^(2)]^(2)= (d...

    Text Solution

    |

  12. Binary operation * on R - {-1} defined by a * b= (a)/(b+a)

    Text Solution

    |

  13. The plane 2x - 3y + 62 - 11 = 0 makes an angle sin^(-1)(alpha) with X-...

    Text Solution

    |

  14. If coefficient of variation is 60 and standard deviation is 24, then a...

    Text Solution

    |

  15. Write the converse and contrapositive of the statement " If x ...

    Text Solution

    |

  16. The probability distribution of X is The value of k is

    Text Solution

    |

  17. int sqrt(x^(2)+ 2x+5) dx is equal to

    Text Solution

    |

  18. If '^(n)C(12) = ""^(n)C(8) then n is equal to

    Text Solution

    |

  19. if y= |[f(x), g(x),h(x)],[l,m,n],[a, b,c]| , then (dy)/(dx) is equal ...

    Text Solution

    |

  20. if tan^(-1)x+ tan^(-1)y= (4 pi)/(5) then cot^(-1)x+ cot^(-1)y is equal...

    Text Solution

    |