Probability Class 9 Maths Formulas

Hey, students are you looking for Probability Class 9 Maths Formulas? If yes. Then you are at the right place. In this post, I have listed all the formulas of Probability class 9 that you can use to learn and understand the concepts easily.

If you want to improve your class 9 Math, Probability concepts, then it is super important for you to learn and understand all the formulas.

By using these formulas you will learn about the Probability.

With the help of these formulas, you can revise the entire chapter easily.

Probability Class 9 Maths Formulas

Probability: Let $n$ be the total number of trials and $m$ be a favourable event. The empirical probability $P(E)$ of an event $E$ happening, is given by

$P(E)=\frac{\text { Number of trials favourable to an event }}{\text { Total number of trials }}=\frac{m}{n}$

• The probability of any certain event is 1 .
• The probability of an impossible event is 0
• $0 \leq P(E) \leq 1$

Trial: A single performance of a random experiment is known as a trial.

Sample space: The set consisting of all possible outcomes of a random experiment is known as sample space.

Event: A subset of the sample space of a random experiment is called an event.

Also Read,

NCERT Class 9 Maths Book in PDF

NCERT Class 9 Science Book in PDF

NCERT Class 9 Science Exemplar in PDF

NCERT Class 9 Maths Exemplar in PDF

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