Probability Part 2: Updating Your Beliefs with Bayes: Crash Course Statistics #14
Today we're going to introduce bayesian statistics and discuss how this new approach to statistics has revolutionized the field from artificial intelligence and ...
========== Hi, I’m Adriene Hill, and Welcome back to
Crash Course Statistics. We ended the last episode by talking about Conditional Probabilities
which helped us find the probability of one event, given that a second event had already
happened. But now I want to give you a better idea of
why this is true and how this formula--with a few small tweaks--has revolutionized the
field of statistics. INTRO In general terms, Conditional Probability
says that the probability of an event, B, given that event A has already happened, is
the probability of A and B happening together, Divided by the probability of A happening
- that’s the general formula, but let’s give you a concrete example so we can visualize
it. Here’s a Venn Diagram of two events, An
Email containing the words “Nigerian Prince...