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Important Questions

Probability

Bihar Board · Class 10 · Mathematics

Most important questions from Probability for Bihar Board Class 10 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.

57 questions20 flashcards5 concepts

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A Venn diagram showing a sample space (S) and an event (A), with the region outside A but within S shaded to represent the complementary event (A').
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57 Questions·
multiple choiceassertion reasoning

Sample Questions

1multiple choice

What does 'equally likely outcomes' mean?

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Each outcome has the same chance of occurring

Equally likely outcomes mean that each possible result in an experiment has the same probability of happening.

2multiple choice

What is the probability of a sure event?

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1

A sure event, which is guaranteed to occur, always has a probability of 1.

3multiple choice

In a fair die, what are the possible outcomes?

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1, 2, 3, 4, 5, 6

A fair die has six faces numbered from 1 to 6, each with an equal probability of being rolled.

4multiple choice

What does P(E) + P(Ē) equal?

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1

The sum of the probability of an event and its complement always equals 1.

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Frequently Asked Questions

What are the important topics in Probability for Bihar Board Class 10 Mathematics?
Probability covers several key topics that are frequently asked in Bihar 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 — Bihar Board Class 10 Mathematics?
Understand the core concepts first, then work through the 57 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many important questions are there in Probability?
There are 57 practice questions available for Probability. These cover multiple question types including MCQs, short answer, and long answer questions.

Sources & Official References

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

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