Home
Class 10
MATHS
The following table gives weekly wages i...

The following table gives weekly wages in rupees of workers in a certain commercial organization. The frequency of class 49-52 is missing. It is known that the mean of the frequency distribution is 47.2. Find the missing frequency. Weekly wages (Rs.)             40-43                              43-46      46-49                              49-52      52-55 No. of workers:     31           58                              60           ?                              27

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 mean of the following distribution is 52 and the frequency of class interval 30-40 is f. Find f.

Find the missing frequencies in the following frequency distribution if it is known that the mean of the distribution is 1.46. No. of accident (x) 0 1 2 3 4 5 Total Frequency (f): 46 ? ? 25 10 5 200

Find the missing frequencies in the following frequency distribution if it is known that the mean of the distribution is 1.46. No of accident (x) 0 1 2 3 4 5 Total Frequency (f): 46 ? ? 25 10 5 200

The mean of the following frequency distribution is 50, but the frequencies f_1 and f_2 in class 20-40 and 60-80 respectively are not known. Find these frequencies. Given that the sum of frequencies is 120.

Find the missing frequencies in the following frequency distribution if it is known that the mean of the distribution is 1.46. No. of accident (x), 0, 1 , 2 , 3, 4, 5 , Total Frequency is 200 and no. of days (f): 46 , ? , ? , 25 , 10 , 5

If the median of the following frequency distribution is 46, find the missing frequencies. Variable: 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Total Frequency: 12 30 ? 65 ? 25 18 230

If the median of the following frequency distribution is 28.5 find the missing frequencies: Class interval: 0-10 10-20 20-30 30-40 40-50 50-60 Total Frequency: 5 f_1 20 15 f_2 5 60

The following table gives the weekly wages of workers in a factory. Weekly wages(Rs) 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 No. of workers 5 20 10 10 9 6 12 18 Calculate the mean, by using Short Cut Method.

The mean of the following distribution is 50 but the frequency f_(1) and f_(2) in classes 20-40 and 60-80, resepectively are not known. Find these frequencies, if the sum of all the fequencies is 120

Find the median of the following frequency distribution: Weekly wages (in Rs.) 60-69 70-79 80-89 90-99 100-109 110-119 No. of days: 5 15 20 30 20 8

RD SHARMA ENGLISH-STATISTICS-All Questions
  1. For what value of k will the following system of linear equations have...

    Text Solution

    |

  2. Draw a cumulative frequency curve and cumulative frequency polygon for...

    Text Solution

    |

  3. The following table gives weekly wages in rupees of workers in a cer...

    Text Solution

    |

  4. The mean of the following frequency table 50. But the frequencies f1a ...

    Text Solution

    |

  5. Find the mean of the following frequency distribution: Classes:       ...

    Text Solution

    |

  6. The following table gives the distribution of total household expen...

    Text Solution

    |

  7. A frequency distribution of the life times of 400 T.V. picture tubes ...

    Text Solution

    |

  8. If the mean of the following distributions 54, find the value of p : ...

    Text Solution

    |

  9. Apply step-deviation method to find the A M of the following frequency...

    Text Solution

    |

  10. The weights in kilograms of 60 workers in a factory are given in the ...

    Text Solution

    |

  11. The table below gives the distribution of villages under different ...

    Text Solution

    |

  12. Find the mean of the following frequency distribution: Class-interval...

    Text Solution

    |

  13. In an isosceles triangle A B C with A B=A C and B D|A Cdot Prove that ...

    Text Solution

    |

  14. If the pair of linear equations (3k+1)x+3y-2 =0 and (k^2+1)x+(k-2)y-5=...

    Text Solution

    |

  15. Draw the graphs of following equations: 2x-y=1a n dx+2y=13 find the s...

    Text Solution

    |

  16. The following table gives the production yield per hectare of wheat of...

    Text Solution

    |

  17. Evaluate: (secthetacos e c(90^0-theta)-tanthetacot(90^0-theta)+sin^2 5...

    Text Solution

    |

  18. If sectheta+tantheta=p , prove that sintheta=(p^2-1)/(p^2+1)

    Text Solution

    |

  19. Prove that in a triangle, if the square of one side is equal to the su...

    Text Solution

    |

  20. Prove that : (sectheta+tantheta-1)/(tantheta-sectheta+1)=(costheta)/(1...

    Text Solution

    |