Probability Concepts

Romano RNR
28 min readOct 28, 2022

Probability theory is a branch of mathematics that helps us understand random events. Probability is a measure of how likely an “event” is to occur.

In practical situations like finance, we often have to decide where some risk is involved. The logical and consistent tools we use to make such decisions are based on probability concepts.

Therefore, we need probability theory to handle many real-world problems that involve risks.

For example, we use probability tools to price bonds to consider the risk of default.

Probability is the likelihood of an “event occurring”.

Insurance companies use probability theory to help them decide what policies to offer and how much to charge. They use data about past events to calculate how likely a particular event will happen.

That data can help them decide, for example, whether or not to offer a policy for a particular type of car and how much to charge.

The probability of an event occurring can be expressed as a fraction between 0 and 1.

A fraction of 0 means that the event is impossible, while a fraction of 1 means that the event is sure to happen.

This is part 1, more articles will be released in the…

--

--

Romano RNR

Derivatives trading, investing, cryptocurrency, stocks, forex, options & volatility - programmer & sysadmin