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 …

Probability tells us how often some event will happen after many repeated trials. You've experienced probability when you've flipped a coin, rolled some dice, or looked at a weather forecast.

The probability of getting "heads," given that it's a Tuesday, is still 1 / 2 . So the result of a coin flip and the day being Tuesday are independent events; knowing it was a Tuesday didn't change the …

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

Basic idea and definitions of random variables

If you're curious about the mathematical ins and outs of probability, you've come to the right unit! Here, we'll take a deep dive into the many ways we can calculate the likelihood of different outcomes.

Learn Random variables Discrete and continuous random variables Constructing a probability distribution for random variable Probability models example: frozen yogurt Valid discrete probability …

The equation P (A and B) = P (A ∣ B) × P (B) might seem confusing at first, but it's essentially saying that the probability of both events A and B happening is the probability of event A happening given that …

And so, if you were to say theoretically, what is the probability, if you stuck your hand in and you're not looking, what is the probability of picking a magenta?

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