# Probability | Gulshan Khatun

## Example 1: Page-9

### A container has 2 defective and 3 non-defective items. If a sample of 3 items are drawn one after another without replacement what is the probability that;

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# Probability | Lecture 1 | Fundamental of Statistic

Experiment: Experiment is a process of observation. Here, we will use E to denote it.

Sample Space: The set of all possible outcome of the experiment. We will use S to denote it.

# Introduction to Probability Theory

### Sample Space and Events

The set of all possible outcome of an experiment while the precise outcome is unknown is called Sample Space and it is often denoted by S.

For a single coin: Sample Space, $S = \lbrace H, T \rbrace$
For two coins, Sample Space, $S = \lbrace (H, H),(H,T),(T,H),(T,T) \rbrace$
For a rolling dice, Sample Space, $S = \lbrace 1,2,3,4,5,6 \rbrace$