Probability and uncertainty

In many ways, the world around us is uncertain[1]. We have developed ways to describe our level of uncertainty, and attempt to predict uncertain events. When an event might occur, we can say there is some probability[2] that it might happen.

Probability is typically expressed in percentages. For example, there might be a 30% probability of rain tomorrow. Predicting the outcome of some event is called forecasting.[3]

Conditional probability

Some events depend on previous events. For example, the weather tomorrow is dependent[4] on the weather today. Dynamic systems[5][6][7] are those, such as weather, where the current situation is sensitive to previous situations.

References

1. Uncertainty’, Wikipedia, <https://en.wikipedia.org/w/index.php?title=Uncertainty>
2. Probability’, Wikipedia, <https://en.wikipedia.org/w/index.php?title=Probability>
3. Forecasting’, Wikipedia, <https://en.wikipedia.org/w/index.php?title=Forecasting>
4. Conditional Probability’, Wikipedia, <https://en.wikipedia.org/w/index.php?title=Conditional_probability>
5. Dynamical System’, Wikipedia <https://en.wikipedia.org/w/index.php?title=Dynamical_system>
6. System Dynamics’, Wikipedia, <https://en.wikipedia.org/w/index.php?title=System_dynamics>
7. Systems Thinking’, Wikipedia, <https://en.wikipedia.org/w/index.php?title=Systems_thinking>