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Revision Notes

Measures of Central Tendency

ICSE · Class 10 · Mathematics

Quick revision notes for Measures of Central Tendency — ICSE Class 10 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

33 questions26 flashcards5 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?
Measures of Central Tendency covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Measures of Central Tendency — ICSE Class 10 Mathematics?
Understand the core concepts first, then work through the 33 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

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