PROBABILITY I

Sample Space

Important concept:

·         An experiment is a process or action to observe its outcomes.

·         A sample space is the set of all possible outcomes from an experiment. It can be represented in the form of set notation.

·         Example : S ={(1,2),(1,3),(1,4)}

Example 1

Experiment: Tossing a fair coin

Sample space,

 S = {Head, Tail}

Example 2

Experiment:  A fair six-sided die is rolled.

Sample space, S ={1,2,3,4,5,6}

Example 3

Experiment: Drawing a ball from a bag containing three balls of the same size: white, black and green.

Sample space, S = {white ball, black ball, green ball}