Home
Class 12
MATHS
It is known that a lot of 10 articles c...

It is known that a lot of 10 articles contains 3 defectives. A sample of 4 articles is drawn at random from the lot. If X be the random variable of defective articles in the sample, then the value of `P(0 lt X lt 2)` is -

A

`(1)/(2)`

B

`(2)/(3)`

C

`(1)/(2)`

D

`(1)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MCQ ZONE

    CHHAYA PUBLICATION|Exercise Question Paper 7|80 Videos
  • MCQ ZONE

    CHHAYA PUBLICATION|Exercise Question Paper 8|80 Videos
  • MAXIMA AND MINIMA

    CHHAYA PUBLICATION|Exercise Sample Questions for Competitive Examination E|2 Videos
  • MCQ ZONE 3

    CHHAYA PUBLICATION|Exercise Question Paper 8|30 Videos

Similar Questions

Explore conceptually related problems

A sample of 4 items is drawn at random from a lot of 10 items, containing 3 defectives. If x denosts the number of decective items I the sampe, then P(0 lt x lt 3) is equal to-

In a lot of 25 articles, 5 are defective. Four articles are drawn at random from the lot. Find the probability that exactly 2 of the drawn articles are defective.

A box contains 50 articles of which 4 are defective. One article is taken at random from the box. Find the probability of that article is not defective. .

From a lot of 25 ariticles containing 5 defective a sample of 4 aritcles was drawn at random (a) without replacement (b) with replacement find the probability distribution of x the number of defectives

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.

In a pack of 10 watches, 3 are known ot be defective. If 2 watches are selected at random from the pack, what is the probability that at least one is defective ?

It is known that 10% of certain articles manufactured are defective. What is the probability that in a random sample of 12 such articles, 9 are defective?

A lot contains 36 ariticles of which 6 are defective A sample of 5 articles was drawn at random (i) without replacement (ii) with replacement find the probalitiy distribution of x the number of defectives

Out of 15 articles in a box, three of. them are defective. If 5 articles of them are drawn at random, what is the probability that at least one article are defective.

Suppose 3 bilbs are selected at random from a lot. Each bulb is tested and classified as defective(N). Write the sample space for the experiment?

CHHAYA PUBLICATION-MCQ ZONE -Question Paper 5
  1. If A ne 0 and B ne 0 are two 2xx2 matrices such that AB = 0, then w...

    Text Solution

    |

  2. The value of |(log(3)512,log(4)3),(log(3)8,log(4)9)|xx|(log(2)3,log(8)...

    Text Solution

    |

  3. It is known that a lot of 10 articles contains 3 defectives. A sampl...

    Text Solution

    |

  4. If the mean and variance of a binomial distribution are (4)/(3) and...

    Text Solution

    |

  5. If the function f(x) is defined by f(x)=a+bx and f^(r )=fff…. (repea...

    Text Solution

    |

  6. The range of the function " "^(7-x)P(x-3) is -

    Text Solution

    |

  7. The domain of definition of the function f(x)=("sin"^(-1)(x-3))/(sqrt...

    Text Solution

    |

  8. The acute angle between the z-axis and the straight line joining th...

    Text Solution

    |

  9. Let veca=hati+hatj+2hatk, vecb=2hati+2hatj, vec c=3hati+5hatj-2hatk a...

    Text Solution

    |

  10. If vecr(1)=hati+2hatj-2hatk and vecr(2)=3hatj-4hatk, then the angle be...

    Text Solution

    |

  11. A unit vector which is perpendicular to both the vectors veca=hati-ha...

    Text Solution

    |

  12. If |veca|=7,|vecb|=sqrt(26) and |veca xx vecb|=35, then the value of v...

    Text Solution

    |

  13. The equation of any plane parallel to y -axis is -

    Text Solution

    |

  14. If |vecb|=4 and (veca+vecb)*(veca-vecb)=9, then the value |veca| is -

    Text Solution

    |

  15. If the line vecr=(2hati-hatj+3hatk)+lambda(2hati+hatj+2hatk) is paral...

    Text Solution

    |

  16. If the equation ax^(4)+bx^(3)+cx^(2)+kx=0 has a root alpha gt 0, the...

    Text Solution

    |

  17. The chord of the curve ax^(2)+bx+c=0, joining the points x=p and x=q o...

    Text Solution

    |

  18. The value of lim(x to 0) (10^(x)-2^(x)-5^(x)+1)/(x log(1+x)) is -

    Text Solution

    |

  19. If f(x)=log(x)(log(e)x), then the value of f'(e ) is -

    Text Solution

    |

  20. If y=(cos^(-1)x)^(2), then the value of (1-x^(2))y(2)-xy(1) is -

    Text Solution

    |