Skip to main content
Chapter 26 of 26
Formula Sheet

Introduction To Probability — Formula Sheet

NIOS · Class 10 · Maths

4 formulas from Introduction To Probability (NIOS Class 10 Maths) on one page, grouped by topic. Part of the NIOS Class 10 Maths syllabus.

40 questions26 flashcards4 formulas & key relations5 concepts

Interactive on Super Tutor

Studying Introduction To Probability? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for formula sheet and more.

Free trial, no card needed.

An illustration showing various real-life scenarios where probability concepts like 'may', 'likely', 'unlikely', 'chances', 'doubt' are used, demonstrating uncertainty.
Super Tutor

One of 7 illustrations for Introduction To Probability in Super Tutor — alongside flashcards, concept maps and practice questions.

4 Entries · 1 Section

Formulas and Key Relations

Probability Formula and Rules

P(E) = (Number of outcomes favourable to E) / (Number of all possible outcomes of the experiment)

0 ≤ P(E) ≤ 1

P(E) + P(Ē) = 1

Sum of the probabilities of all the elementary events of an experiment = 1

Full sheet with units and worked examples

View All

Frequently Asked Questions

What are the important topics in Introduction To Probability for NIOS Class 10 Maths?
Key topics in Introduction To Probability include Basic Ideas in Probability, Event, Elementary Event, and Probability Formula, Sure Events, Impossible Events, and Complementary Events, Standard Worked Examples. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How many formulas are in Introduction To Probability?
This sheet lists 4 formulas from Introduction To Probability, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Introduction To Probability for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 40 practice questions on Introduction To Probability. 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.

For serious students

Get the full Introduction To Probability chapter — start free.

Quizzes, flashcards, an AI doubt solver and a study plan for NIOS Class 10 Maths. Free to start, no card needed.