Home
Class 12
MATHS
Calculate the average marks in mathemati...

Calculate the average marks in mathematics obtained 102 student from the following frequency distribution :
Find average marks by short-cut method.

Text Solution

Verified by Experts

The correct Answer is:
`:." "overline(x)=A+(Sigmafd)/(N)=30+(-400)/(102)=30-3.92=26.08`
Promotional Banner

Topper's Solved these Questions

  • Measures of Central Tendency

    CHHAYA PUBLICATION|Exercise Exercise 2 A Very short answer type question|23 Videos

  • Measures of Central Tendency

    CHHAYA PUBLICATION|Exercise Exercise 2 B Very short answer type question|16 Videos

  • MCQ's

    CHHAYA PUBLICATION|Exercise QUESTION PAPER 9|66 Videos

  • MEASURES OF DISPERSION

    CHHAYA PUBLICATION|Exercise Sample question for competitive exams (D. Assertion-Reason Type)|2 Videos

Similar Questions

Explore conceptually related problems

Find the median of heights of the students from the following frequency distribution.

Find the mode of data from the following frequency distribution table :

Find the mode of the following frequency distribution of obtained marks of 22 students.

Find the average of the numbers from the given frequency distribution :

Write the mark wise frequencies in the following frequency distribution table.

Find the mean of obtained marks of the students from the following cumulative frequency of obtained marks.

Find the day of average absence of each and every student from the following given table :

Calculate the mean of obtained marks of 64 students from the given data.

Draw an ogive (less than type) from the following frequency distribution table and hence find the median of this graph.

If the mean age of 50 men is 41.1 years then find the values of x and y from the following frequency distribution table.

CHHAYA PUBLICATION-Measures of Central Tendency -Exercise 2 C Very short answer type question
  1. Calculate the average marks in mathematics obtained 102 student from t...

    Text Solution

    |

  2. Find the mode of the following numbers : 5,3,2,7,5,3,8,5

    Text Solution

    |

  3. Find the mode of the following numbers : 4,3,2,5,4,5,3,7,3,2,6

    Text Solution

    |

  4. Find the mode of the following numbers : 7,4,10,15,7,3,5,2,9,12

    Text Solution

    |

  5. If the mode and median of a frequency distribution are 31 and 37 respe...

    Text Solution

    |

  6. If the mean and median of a frequency distribution are 35 and 33 respe...

    Text Solution

    |

  7. If the mode and A.M. are Rs. 12.30 and Rs. 18.48 respectively find the...

    Text Solution

    |

  8. IF y=2x-11 , the medin and the mode of x are 30 and 28 respectively, f...

    Text Solution

    |

  9. If 2y-6x=6 and the mode of x is 21, find the mode of y.

    Text Solution

    |

  10. The values of two variables x and y re : find the mean and median...

    Text Solution

    |

  11. The dialy wages of 30 orkers are given below : Form the folowing ...

    Text Solution

    |

  12. The frequency distribution of the daily rainfall of a town in the last...

    Text Solution

    |

  13. Find the mode for the following frequency distribution

    Text Solution

    |

  14. Find mode for the following distribution.

    Text Solution

    |

  15. Find the mode for the following frequency distribution

    Text Solution

    |

  16. Marks obtained by 25 students given below : Find (i) arithmetic m...

    Text Solution

    |

  17. Daily wages of a group of workers given below : Find (i) A.M., (i...

    Text Solution

    |

  18. Find the A.M. A.M and median of the following frequency distribution a...

    Text Solution

    |

  19. From the following data find (i) mean (ii) median (iii) mode.

    Text Solution

    |