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Measures of Central Tendency — Revision Notes

ICSE · Class 10 · Mathematics

Measures of Central Tendency revision notes for ICSE Class 10 Mathematics: 3 topics in quick points. Part of the ICSE Class 10 Mathematics syllabus.

33 questions26 flashcards12 formulas & key relations5 concepts

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Key Topics to Revise

1

Core Ideas and Definitions

  • A numerical value which represents the entire given statistical data is called the measure of central tendency.
  • The three measures of central tendency are mean, median and mode.
  • Mean is the arithmetic average of the data.
2

Mean: Methods and Worked Examples

  • The mean of n observations is the sum of observations divided by the number of observations.
  • Mean can be found by direct method, short-cut method and step-deviation method.
  • The direct method is simple and uses Σ f x / Σ f for grouped data.
3

Median, Quartiles and Graphical Methods

  • Median is the middle value in ordered data.
  • For odd n, the median is the (n + 1) / 2 th term.
  • For even n, the median is the average of the n / 2 th and (n / 2 + 1) th terms.

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Full Notes

Key Concepts

Mean is the arithmetic averageFor grouped dataThis method uses an assumed meanThis method uses an assumed meanMedian is the middle value

Frequently Asked Questions

What are the important topics in Measures of Central Tendency for ICSE Class 10 Mathematics?
Key topics in Measures of Central Tendency include Core Ideas and Definitions, Mean: Methods and Worked Examples, Median, Quartiles and Graphical Methods. Study these first, then practise questions on each for the ICSE Class 10 board exam.
How should I revise Measures of Central Tendency for the ICSE Class 10 board exam?
Learn the core ideas first, then work through the 33 practice questions on Measures of Central Tendency. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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