Probability is simply how likely something is to happen. Whenever we’re unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. The analysis of …

Go deeper with your understanding of probability as you learn about theoretical, experimental, and compound probability, and investigate permutations, combinations, and more!

Here, we'll take a deep dive into the many ways we can calculate the likelihood of different outcomes. From using simulations to the addition and multiplication rules, we'll build a solid foundation that will …

Learn statistics and probability—everything you'd want to know about descriptive and inferential statistics.

Based on this data, what is a reasonable estimate of the probability that the next customer to enter Jeremy's Pet Store has exactly 3 pets? Choose the best answer.

We give you an introduction to probability through the example of flipping a quarter and rolling a die.

This introduction to probability and statistics explores probability models, sample spaces, compound events, random samples, and a whole lot more.

Practice finding probabilities of events, such as rolling dice, drawing marbles out of a bag, and spinning spinners.

Practice finding probabilities involving the sampling distribution of a sample mean.

In order to find the probability of picking a yellow marble from a bag, we have to first determine the number of possible outcomes, and then how many of them meet our constraints.