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Syllabus

Measures Of Dispersion — Syllabus

Telangana Open School (TOSS) · Class 12 · Mathematics

What Measures Of Dispersion covers in Telangana Open School (TOSS) Class 12 Mathematics: 4 topics, for the 2026-27 session.

50 questions25 flashcards9 formulas & key relations4 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Mathematics · 2026-27

Topics in Measures Of Dispersion

1

1. Range

  • Range is the simplest measure of dispersion.
  • It is the difference between the largest and smallest values in a dataset.
  • It gives a rough idea about the spread of data.
2

2. Mean Deviation

  • Mean Deviation measures the average of absolute deviations from the mean or median.
  • It considers all data points, so it is better than range.
  • It is less affected by extreme values when calculated from median.
3

3. Variance and Standard Deviation

  • Variance is the average of squared deviations from the mean.
  • Standard Deviation is the positive square root of variance.
  • These are the most widely used measures of dispersion.
4

4. Step Deviation Method

  • Used to simplify calculations in grouped data.
  • Involves coding the data using \(u_i = \frac{x_i - a}{h}\).
  • Reduces large numbers and simplifies arithmetic.

Key Concepts

Central concept: Measures of Dispersion

RangeMean DeviationVarianceStandard DeviationDispersion

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Frequently Asked Questions

What are the important topics in Measures Of Dispersion for Telangana Open School (TOSS) Class 12 Mathematics?
Key topics in Measures Of Dispersion include Range, Mean Deviation, Variance and Standard Deviation, Step Deviation Method. Study these first, then practise questions on each for the Telangana Open School (TOSS) Class 12 board exam.
How should I revise Measures Of Dispersion for the Telangana Open School (TOSS) Class 12 board exam?
Learn the core ideas first, then work through the 50 practice questions on Measures Of Dispersion. 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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