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Revision Notes

Probability

Telangana Board · Class 10 · Mathematics

Quick revision notes for Probability — Telangana Board Class 10 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

45 questions30 flashcards5 concepts

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Key Topics to Revise

1

1. Basic idea of probability

  • Probability gives a numerical measure of how likely an event is.
  • Experimental probability comes from actual trials and records what happened.
  • Theoretical probability is based on equally likely outcomes and counts favourable outcomes.
2

2. Experimental probability and coin toss data

  • A normal coin tossed 1000 times gave 455 heads and 545 tails.
  • Experimental probability of getting head in that case is 0.455.
  • Buffon, Kerrich, and Pearson all carried out large coin-toss experiments.
3

3. Sample space, elementary events, and mutually exclusive events

  • For one coin toss, the sample space is {H, T}.
  • A single outcome event is an elementary event.
  • Getting a head and getting a tail are mutually exclusive events.
4

4. Complementary, impossible, and sure events

  • The complement of an event E is not E, written as Ē.
  • For any event E, P(Ē) = 1 - P(E).
  • Complementary events are mutually exclusive and exhaustive.

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Full Notes

Key Concepts

Experimental probability is calculated from actualTheoretical probability is calculated as P(T)Outcomes are equally likely when chancesThe sample space is the setAn event having only one outcome

Frequently Asked Questions

What are the important topics in Probability for Telangana Board Class 10 Mathematics?
Probability covers several key topics that are frequently asked in Telangana Board 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 Probability — Telangana Board Class 10 Mathematics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and 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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