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1. Number System
2. Polynomials
3. Coordinate Geometry
4. Linear Equations in Two Variable
5. Introduction to Euclid Geometry
6. Lines and Angles
7. Triangles
8. Quadrilterals
9. Areas of Parallel ograms and Triangle
10. Circles
11. Construction
12. Herons Formula
13. Surface Areas and Volumes
14. Statistics
15. Probability
Summary
Topics:
Objectives
Introduction
Introduction to Probability
Elementary Event and Compound Event
Occurrence of an Event
Favourable Elementary Events
Empirical Probability
Determining Empirical Probability
Calculating Empirical Probability When Outcomes are Equally Likely
Summary
Summary
The result of an experiment or trial is called an outcome.Â
An event for an experiment is the collection of outcomes of the experiment.Â
The empirical (or experimental) probability P(E) of an event E is given by
Â Â Â Â Â Â P (E) =
The probability of an event is never less than zero or greater than one
Â
In an experiment, the sum of all probabilities is 1. For example , if E
_{1 , }
E
_{2 , }
E
_{3Â }
are the outcomes of a trial, then P(E1)+P(E2)+P(E3) = 1Â
The probability of an impossible event is 0.Â
The probability of an event that is certain to occur is 1.
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