Conditional probability is a branch of mathematics that deals with the probabilities of two or more events happening. It can be expressed as: where and are the respective probabilities of events and .
This equation is called the general equation for conditional probability. In this blog post, we will discuss how to use conditional probability in order to find out whether something will happen or not happen. The formula above tells us there’s a certain chance event A might have happened ( ).
To determine if it did happen, you need to know what would have had to occur before-hand for event BTO take place; then you look at both ‘sand’ since they’re dependent on each other’s outcome. If its expected value () is greater than, the probability of event A’s happening is.
Let’s say that we want to find out whether or not an NBA player made their free throw attempt in training today. Free throws usually go in about 75% of the time.