BBC

Sum of probabilities

It is certain that this bus will either be late or not late, which is a probability of 1 The missing value of a probability can be worked out by subtracting the known probabilities from 1 (100% when ...
Investopedia

Objective Probability: What it is, How it Works, Examples

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...
Scientific American

What is Bayes's theorem, and how can it be used to assign probabilities to questions such as the existence of God? What scientific value does it have?

Chris Wiggins, an associate professor of applied mathematics at Columbia University, offers this explanation. A patient goes to see a doctor. The doctor performs a test with 99 percent ...
Scientific American

Probability Probably Doesn’t Exist

Life is uncertain. None of us know what is going to happen. We know little of what has happened in the past or is happening now outside our immediate experience. Uncertainty has been called the ...