Home
Class 10
MATHS
The following table gives the distributi...

The following table gives the distribution of the life time of 400 neon lamps: Lite time: (in hours)                     Number of lamps `1500-2000`                                    14 2000-2500                                    56 2500-3000                                    60 3000-3500                                    86 3500-4000                                    74 4000-4500                                    62 4500-5000                                    48 Find the median life.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SOME APPLICATIONS OF TRIGONOMETRY

    RD SHARMA ENGLISH|Exercise All Questions|154 Videos

  • SURFACE AREAS AND VOLUMES

    RD SHARMA ENGLISH|Exercise All Questions|420 Videos

Similar Questions

Explore conceptually related problems

The following table gives the life times of 400 neon lamps: (i) Represent the given information with the help of histogram. (ii) How many lamps have a life time of more than 700 hours?

The following table gives the distribution of income of 100 families in a village. Calculate the standard deviation: Income Rs. 0-1000 1000-2000 2000-3000 3000-4000 4000-5000 5000-6000 No. of Families 18 26 30 12 10 4

The following table gives the distribution of income of 100 families in a village. Calculate the standard deviation: Income Rs., 0-1000, 1000-2000, 2000-3000, 3000-4000, 4000-5000, 5000-6000 No. of Families, 18, 26, 30, 12, 10, 4

The following data gives the distribution of total monthly household expenditure of 200 families of a village. Find the modal monthly expenditure of the families. Also, find the mean monthly expenditure: Expenditure (Rs.) Frequency Expenditure (Rs.) Frequency 1000-1500 24 3000-3500 30 1500-2000 40 3500-4000 22 2000-2500 33 4000-4500 16 2500-3000 28 4500-5000 7

The following data gives the distribution of total household expenditure (in rupees) of manual workers in a city: Expenditure (Rs.) Frequency Expenditure ( Rs.) Frequency 1000-1500 24 3000-3500 30 1500-2000 40 3500-4000 22 2000-2500 33 4000-4500 16 2500-3000 28 4500-5000 7 Find the average expenditure which is being done by the maximum number of manual workers.

The following table gives the life time of 400 neon lamps: Life time (in hours 300-400 400-500 500-600 600-700 700-800 800-900 900-1000 No. of lamps: 14 56 60 86 74 62 48 A bulb is selected at random. Find the probability that the life time of the selected bulb is : (i)less than 400 (ii)between 300 to 800 hours (iii)at least 700 hours.

At present, a firm is manufacturing 2000 items. It is estimated that the rate of change of production P w.r.t. additional number of workers x is given by (d P)/(dx)=100-12sqrt(xdot) If the firm employs 25 more workers, then the new level of production of items is (1) 3000 (2) 3500 (3) 4500 (4) 2500

RD SHARMA ENGLISH-STATISTICS-All Questions
  1. A life insurance agent found the following data for distribution of ...

    Text Solution

    |

  2. The lengths of 40 leaves of a plant are measured correct to the neares...

    Text Solution

    |

  3. The following table gives the distribution of the life time of 400 neo...

    Text Solution

    |

  4. The distribution below gives the weight of 30 students in a class. Fin...

    Text Solution

    |

  5. Find the mode of the following data:  120, 110, 130, 110, 120, 140,...

    Text Solution

    |

  6. Compute the modal value for the following frequency distribution: x : ...

    Text Solution

    |

  7. The following data gives the distribution of total household expendi...

    Text Solution

    |

  8. The following table shows the age distribution of cases of a certain ...

    Text Solution

    |

  9. Find the mode of the following data: (i) 3, 5, 7, 4, 5, 3, 5, 6, 8, 9,...

    Text Solution

    |

  10. The shirt sizes worn by a group of 200 persons, who bought the shirt ...

    Text Solution

    |

  11. Find the mode of the following distribution: (i) Class-interval:  0-10...

    Text Solution

    |

  12. Compare the modal ages of two groups of students appearing for an en...

    Text Solution

    |

  13. The marks in science of 80 students of class X are given below: Find t...

    Text Solution

    |

  14. The following is the distribution of height of students of a certain ...

    Text Solution

    |

  15. The following table shows the ages of the patients admitted in a ho...

    Text Solution

    |

  16. The following data gives the information on the observed lifetimes (in...

    Text Solution

    |

  17. The following data gives the distribution of total monthly household ...

    Text Solution

    |

  18. The following distribution gives the state-wise teacher-student ratio ...

    Text Solution

    |

  19. The given distribution shows the number of runs scored by some top b...

    Text Solution

    |

  20. A student noted the number of cars passing through a spot on a road fo...

    Text Solution

    |