Probability

PROBABILITY

Probability: is how likely an event is.

Experiment: is a situation involving chance or probability that leads to result called outcome.

Outcome/Sample point: is the result of a single trial of an experiment.

(Certain) event/ sample scale: All the possible outcome of an experiment.

P(A) = The number of ways event "A" lan occur.

            Total number of possible outcome

Example, 

2, 1, 4, 2, 1, 3

= 2 + 1 + 4 + 2 + 1 + 3

= 13/6 = 2.2

(2 - 2.2)² + (1 – 2.2)² + (4 – 2.2)² + (2 – 2.2)² + (1 – 2.2)² + (3 – 2.2)²

 = 0.0256 + 1.3456 + 3.3856 + 0.0256 + 1.3456 + 0.7056

= 6.8336 / 6