Home
Class 12
MATHS
In a group of 200 items, if the probabil...

In a group of 200 items, if the probability of getting a defective item is 0.2, write the mean of the distribution.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • BINARY OPERATIONS

    RD SHARMA ENGLISH|Exercise All Questions|226 Videos
  • CONTINUITY

    RD SHARMA ENGLISH|Exercise All Questions|282 Videos

Similar Questions

Explore conceptually related problems

If the probability of a defective bolt is 0.1, find the i. mean and ii. standard deviation for the distribution of bolts in a total of 400 bolts.

The items produced by a company contain 10% defective items. Show that the proximity of getting 2 defective items in a sample of 8 items is (28xx9^6)/(10^8) .

A group of 10 items has arithmetic mean 6. If the arithmetic mean of 4 of these items is 7.5, then the mean of the remaining items is

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. Also find the mean and variance of the distribution.

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?

There are 6% defective items in a large bulk of item. Find the probability that sample of 8 items will include not more than one defective items.

In a binomial distribute if probability of getting success is 1/4 and standard deviation is 3/2 then mean is

Find the probability distribution of the number of success in two tosses of a die, where a success is defined as ''getting a number greater than 4''. Also, find the mean and variance of the distribution.

Out of a group of 30 honest people, 20 always speak the truth. Two persons are selected at random from the group. Find the probability distribution of the number of selected persons who speak the truth. Also find the mean of the distribution

If in a distribution each x is replaced by corresponding value of f(x) , then the probability of getting f(x) , when the probability of getting x_(i) is p_i , is.

RD SHARMA ENGLISH-BINOMIAL DISTRIBUTION -All Questions
  1. In a binomial distribution, if n=20 ,\ q=0. 75 ,then write its mean.

    Text Solution

    |

  2. A binomial distribution has mean 5 and variance 4. Find the number of ...

    Text Solution

    |

  3. In a group of 200 items, if the probability of getting a defective ite...

    Text Solution

    |

  4. If the mean of a binomial distribution is 20 and its standard deviatio...

    Text Solution

    |

  5. The mean of a binomial distribution is 10 and its standard deviation i...

    Text Solution

    |

  6. The mean and variance of a random variable X having a binomial distrib...

    Text Solution

    |

  7. If the mean and variance of a binomial variable X are 2 and 1 respecti...

    Text Solution

    |

  8. If in a binomial distribution n=4 \ and \ P(X = 0) = (16)/(81), find q...

    Text Solution

    |

  9. Find the binomial distribution for which the mean is 4 and variance 3.

    Text Solution

    |

  10. If for a binomial distribution P(X=1)=P(X=2)=alpha, \ write \ P(X=4) i...

    Text Solution

    |

  11. A fair coin is tossed four times. Let X denote the number of heads ...

    Text Solution

    |

  12. If X follows Binomial distribution with parameters n=5, p and P(X=2)=9...

    Text Solution

    |

  13. In a box containing 100 bulbs, 10 are defective. The probability th...

    Text Solution

    |

  14. If in a binomial distribution n=4\ a n d\ p9X=00=(16)/(81),\ fin d\ qd...

    Text Solution

    |

  15. A rifleman is firing at a distance target and hence has only 10% ch...

    Text Solution

    |

  16. A fair coin is tossed a fixed number of times. If the probability of g...

    Text Solution

    |

  17. A fair coin is tossed 100 times . The probability of getting head an o...

    Text Solution

    |

  18. A fair die is thrown 20 times. The probability that on the 10th thr...

    Text Solution

    |

  19. Suppose a random variable X follows the binomial distribution with par...

    Text Solution

    |

  20. A fair coin is tosed n times. Let X denote the number of times head oc...

    Text Solution

    |