Now we can answer questions like "What are the chances of drawing 2 blue marbles?" Answer: it is a 2/5 chance followed by a 1/4 chance: Did you see how we multiplied the chances? And …

Dec 6, 2025 · To calculate the conditional probability, we can use the following step-by-step method: Step 1: Identify the Events. Let's call them Event A and Event B. Step 4: Determine …

Use the conditional probability calculator to determine the probability of an event conditional on another event.

If $C$ is the event that it is cloudy, then we write this as $P (R | C)$, the conditional probability of $R$ given that $C$ has occurred. It is reasonable to assume that in this example, $P (R | C)$ …

Here you will learn about conditional probability, including the definition of conditional probability and how to calculate probabilities when there are conditional elements.

Given two events A and B from the sigma-field of a probability space, with the unconditional probability of B being greater than zero (i.e., P (B) > 0), the conditional probability of A given B …

Conditional probabilities are written like P (A|B), which can be read to mean, "the probability that A happens GIVEN b has happened." If we know probabilities like P (A), P (B), and P (A|B), we …